Peter Heather: The Fall of the Roman Empire: A New History of Rome and the Barbarians
vs.
Adrian Goldsworthy: How Rome Fell: Death of a Superpower
I'll summarize the arguments for you.
Heather's book was one of the first of the current wave of general histories of the collapse of the Roman state to be published. It's quite good, and injects a good deal of recent scholarship into it. The book's not hard to follow for the non-historian and he explains a great deal of the background of late antique historical studies and the advances that have been made over the past half-century especially. Heather doesn't get bogged down in chronology, either, which is nice. His specialty is the Goths, and he does very well describing their particular history, which is so intertwined with that of the later Empire. He has also written a more recent book (
Empires and Barbarians), in which he responds to criticism directed his way, and which covers the theme of migratory peoples in the first millennium AD. You may wish to check it out.
Goldsworthy's book was more or less a direct response to Heather's (and some others) and thus has the salient advantage of being able to respond directly to arguments Heather made. He takes things a bit further back than does Heather and takes more of a "long view" of events in Roman history. Goldsworthy's got great name recognition because he is already the author of many popular Roman history works (on the Roman army, mostly; his Caesar biography is quite good, as was his Punic Wars volume). He is chiefly concerned with Roman military history, and tends to analyze the situation from the point of view of warmaking.
Both have significant drawbacks, of course.
One of the annoying things about the current crop of good popular historians of late antiquity is that they seem to all be British and focus unduly on the problem of British history in the period. It certainly is an interesting tangle, but at some point you kind of have to throw up your hands and say "we have no friggin clue" and leave it at that.
Heather's main flaw is probably in connecting archaeology and material culture too closely to political history, which is really more of a matter of degree than anything. In terms of writing style, he tends to be a bit more "chummy" than most historians and ends up treating the book like a university lecture. YMMV; some people don't like the attempts to be colloquial, some people find it refreshing. In his more recent book, I think he also overstates certain parts of his opponents' arguments as compared to others (arguing against a "migration topos" when such an aversion to migration doesn't really exist to that extent, for instance).
Goldsworthy's book's main flaw is that it's basically wrong. A lot of Goldsworthy's work is in the Republican and early Imperial armies, and as such he tends to glorify the earlier Romans and their achievements and emphasize how much better they were than the later ones. He fits this into a theme of decline that doesn't quite match the actual data. As such, he magnifies the importance of events that fit his theory, minimizes or fails to mention those that don't, and generally starts to act dismissive by the later parts of the book. He also argues that archaeological evidence is less definitive than has been claimed, something that runs against the grain of basically all recent scholarship, employing arguments like "maybe the sites we have access to were anomalous ones - we just don't know" that hold little merit. He employs similar arguments against textual evidence such as the famous list of army and civilian office-holders, the
Notitia Dignitatum, claiming that the list was akin to Hitler moving around phantom armies on a map. And he reintroduces the racial element into the whole thing, emphasizing the barbarian-ness of "new" recruits to the Roman army, which presumably increased in number as the empire's age did, without considering (1) that Roman armies had been
at least half non-Roman from the very beginnings of Roman history, (2) that the dividing line between "Roman" and "barbarian" was, while not fluid, very confusing and difficult to draw, and probably an unnecessarily complicating distinction for the most part, (3) that there is not a shred of evidence that argues that "barbarian" soldiers were worse ones than "Roman" ones were, and a few others. It's like reading Gibbon all over again. Basically, his book is just a mess, and in the most recent round of scholarly papers and books it doesn't get seriously mentioned by anybody. The dude's a good historian, but he's kind of out of his field, and it shows.
There is a book that you haven't mentioned, which I would actually recommend more highly than either of the two that you did: Guy Halsall's
Barbarian Migrations and the Roman West, 376-550. The book is a fantastic counterpart to Heather's in that reading both allows you to see both sides of the coin, the two main coherent arguments in late antique studies on the matter of the political end of the western Roman Empire. Halsall and Heather agree on many points, but the one where they differ - and it's a big one - is the notion of barbarian protagonism in Western Roman collapse. Where Heather argues that the Huns basically "pushed" other groups into the Western Roman Empire and were ultimately responsible for generating the military threat that resulted in its collapse, Halsall says that the Romans themselves, in internecine civil conflict, created the conditions by which barbarian groups could enter the Roman state.
Halsall's book has flaws too, and Heather's most recent work
Empires and Barbarians points out some of the more conjectural statements he's made and leaned a bit too hard on. Halsall's work frequently responds to Heather's original
Fall book in a similar vein. The three make a very nice, cohesive picture of late antique studies, and you should definitely read all three of them. If I had to pick one, I'd go with Halsall, since his narrative is better fleshed out, his tone is much more to my liking, and he employs footnotes instead of endnotes. But if you are more of a casual reader, go with Heather's first,
Fall of the Roman Empire.
Die in a fire.
Seriously, the only people who should read Gibbon are historians, masochistic lit students, and douchebags who want to look smart by reading very thick, very famous old-school history books. He has very variable scholarly merit (some stuff he got right, some stuff he didn't), so if you read his book you're going to get a very weird version of late Roman history. It's not written in modern English and as such is somewhat of a chore to read, as well. If you want to learn about
what actually happened, don't read Gibbon.
Thanks for the recommendation. Amazon had a lot of "Goldsworthy's book was published more recently than Heather's so it must be better" style customer reviews, and I didn't know where to look to get a good synopsis on which author to choose.
It's not a bad general rule to follow, but a lot of Goldsworthy's criticisms are just
silly. Heather's book does have flaws, but Halsall makes a much better critic than does Goldsworthy. Notably, Amazon had a five-star rating for the Halsall book when I last checked - but it's more expensive and less frequently rated, because it's more of a "scholarly" work than either of the other two (also it is a bigger book).
Xenophon - Hellenica (The Landmark Edition). Expensive, but I really liked Herodotus version in this series. The extremely extensive maps, footnotes and appendices stop the casual reader from getting lost. (Although I'm sort of between a casual reader and a specialist)
This is a fine work but unless you are a classical history student and have a good idea about where Xenophon is papering over events and where he is openly lying, you probably ought to skip out on this. I recommend Buckler and Beck's history of Central Greek power politics in the fourth century and Cartledge's massive tome on Agesilaos if you want the current word on Xenophon.
Then you should give him a whirl, because Xenophon's great.
Egypt, Greece & Rome (Charles Freeman)
This is a decent introduction, but the dude (Freeman) is the same weirdo who wrote that ridiculously out-of-touch book about the "Dark Ages" and the "closing of the Western mind", isn't he? I'd avoid anything he writes about religion and philosophy like the plague.
By all means, no. The man hasn't been taken seriously in the historical community for two hundred years. You want me to summarize his special pleading? Its basically a thousand pages of "Christian morality makes men wimpy and it corrupted Roman Paganism that built the Republic, so the Christians are responsible for everything that went wrong between 1-500 AD."
Yeah, this is a huge part of why Gibbon shouldn't really be read by the casual reader or undergraduate. There's other stuff, too, though. For instance, most of his character studies of emperors are based on his perceived conception of their morality. He seriously employs pejoratives such as "dissolute" and such, because for Gibbon, Roman successes are due to Rome being awesome and the emperor at the time being a good emperor, and Roman failures are due to the emperor being a "weak" character or "dissolute". And eventually he does a 180 and decides that no matter how militarily or politically successful an emperor might be, his successes and failures are due to the weaknesses of his enemies, not his (or her) personal actions.
Also, Gibbon's ability to draw on archaeological findings is virtually nil, his overview of social and economic history is laughably primitive (mostly due to the previous "archaeology" point), and his historiographical knowledge is more or less limited to his personal assessment of the value of certain sources, which is highly suspect.
This isn't to say that Gibbon's work is valueless, as it certainly isn't, but in view of all of the more recent and better works that have come out, it really oughtn't hold pride of place like it currently does. If you really
must read an old-school history book on late antiquity, J. B. Bury's midcentury series was far better. In fact, most of the current crop of late antique historians have tended to update Bury (and each other). Gibbon doesn't usually enter the argument at all, save when somebody (e.g. Heather) wants to use a Gibbon quote on historiography to demonstrate the value of a given source (in this case, arguing that Ammianus Marcellinus' depiction of the Huns isn't as wildly incorrect as others, like Halsall, would argue that it is, partly (but not wholly of course) because Gibbon considers him a "most faithful guide").