Which has a bigger snowball, a border pop several turns earlier, or additional settlers/workers? Assuming you have at least 1-2 good tiles to improve right next to a new city, you can just build a monument and by the time your worker is bored and the city has grown, it border pops anyways. Your first few cities would probably just build warriors instead of monuments anyways. because the OC of just building monuments is so low, charismatic/ monument UBs don't make SH a better deal.
If you got industrious leader and early stone such that it's really cheap, well guess what's also super cheap early stone wonder. The Great Wall. Provided you have any nearby civs the GW means your economy will do fine til the late game without any effort. That's one heck of an opportunity cost for SH to compete with. And going for both SH and GW puts the second wonder at great risk and would pollute the GSpy pool and defeat the purpose.
Maybe if you were isolated, industrious and had early stone I wouldn't judge you for building SH, but hey I'm open to arguments about still just skipping SH for mids
OH MAH GODDDDDDDDDDDDD
alright, alright. I hear you. I understand you. Now let me coddle you and pat you on the head dear boy, because it seems they need to give you your medicine. Don't worry, mama bishu has warmed up some tea and honey to make it all better.
But mocking Stonehenge? Seriously?

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Anyways let us discuss this as rational adults. Its something you will learn when you get older.
So. Lets make a few assumptions here shall we? Lets assume you are a ladder player on the multiplayer over at the gamespy hosted servers. Now that we have a clear view of your crib, let us digest your circumstance.
At the blazing turn timer you are playing quite a different game than the average Civ player. Of COURSE you will think the GW is better than the SH because, assuming there is a turn timer, it will be impossible for you to maximize the SH benefits.
If you are building workers and settlers in your hammer high city, its not that you are playing incorrectly, it is that you are playing to your settings. People want useful units out *fast*. Therefore they will want workers and settlers out as soon as possible, and what better way than out of a high hammer city.
But wait! Then you say just build the GW. Well, if you are to build either wonder you should always build the SH (unless its obvious someone else will do the same, in which case its all WITOH and its a whole different ballgame). Assuming a single player game there is no reason to build the GW before the SH unless you have absoultely NO room for expansion or are playing a no settlers game.
Lets put it to you this way. One of your arguments said as much as the only thing better than culture pops were workers and settlers.
What are cities by themselves? Useful? No. They are a waste of maintenance. Culture and workers make them useful. Without culture and workers cities fall way behind the growth curve. A nation without stonehenge or cultural trait should just go ahead and overlap their cities to their hearts content. And I mean seriously pave the world. Of course, this isn't he whole game, just the opener, just the part where having more settlers than the other guy is most important. What stonehenge gives you is an opportunity to make better cities, more useful cities. If nothing else they make decent land grabbers for once. It isn't your capital that should be building your workers and settlers (imho) it should be your outlying cities. By all means micro whatever you need to, but in the meantime you make a few cities, the new cities start worker first (assuming there is anything workable nearby) and the wave of workers paves the way for the next round of cities. These workers make your cities useful. They make them grow and become productive members of national society.
What is civ without a ton of workers being maximized to steepen your growth curve.
Of course, it all comes back to the timers. Without a timer, you don't need to worry about barbs 'sneaking up on you', without a timer, you don't have to worry about 'losing worker turns' ... except for when those pesky barbarians poke their tiny heads. Also, if you are up on the growth curve, at least in basic civ, those barbarians will never be strong enough to threaten you seriously. Now, defensive diety is altogether a different ballpark, but if we go there lets talk 'what is the most defensive wonder' not 'what is the best'. And even then I couldn't go anywhere near calling Stonehenge one of the worst ... In fact, culture is a key factor to defense (at least 10% per city, if we count just the first pop), so in some ways you could say building the SH is like building a mini walls in each city. Does the Great Wall have that going for it? Does it protect you any from other civs' units? No. No it doesnt. It gives you some more generals to help out in a war you are already losing. On the other hand, its GREAT if you can trick a sub par opponent into suiciding against you ... but then again, is that really better than a MINI CREATIVE TRAIT!?
Seriously. Lets look at the brass tax. Maybe *I* would pick creative because of the faster libraries ... but what would a sane person pick Cre for? THE CULTURE. What else? And guess what. With stonehenge (or Incan terraces) you don't have to worry about not having CRE because your cities are getting culture ANYWAYS. Sure its +1 instead of +2, and you don't get extra speedy libraries .... but man, that's nearly half a whole trait! Just from a wonder at that.
Imho, there are three early wonders. Pyramids, Oracle, and Stonehenge. And in a real city spam situation? Stonehenge would be top of the list.