Autocracy is a pretty weak tree. The one thing that a domination game needs is happiness and Order provides that better than Autocracy.
Very debatable. +3 happiness per courthouse from Autocracy is arguably better. That lets you annex good cities and quickly build courthouses, allowing you to use those cities to produce even more units/science/etc.
Agree with the conclusion that order is simply better than autocracy for domination games. Aside from the policies being better, order enables faith-purchasing GE's, which are ALWAYS extremely beneficial, whereas autocracy enables GG's and GAd's, both of which you'll end up with more than you could possibly know what to do with anyway during a dom game (save possibly Sweden).
What in the world do you need GEs for?
Rushing wonders? If you are planning to dominate the world, wonders are highly unnecessary.
There is really no way to say Order is better than Autocracy for domination as it really isn't.
Another bad thing of annex city is the National wonders which some available in late game wide empire. Many of them is a must built - ironwork, oxford etc. If annex city doesn't have those requirement buildings, we have a chance to miss those NWs in that game
Honestly, other than the National College, NONE of the national wonders are must-builds.
Domination game, remember?
You don't need to annex every city.
Raze the crap ones, puppet the okay ones, and annex the good ones.
Keep in mind you get culture from capturing cities, which helps with the annexing you will be doing.
Autocracy is really nice for long games where you have more than standard AI as it can take a while to get through to everyone.
It obviously doesn't help with sub-150 turn games, but but then neither does Order.
Seriously, for domination victory, Honor is much worse than Autocracy (and Order) in late game and Liberty is much better than Honor in early game.
My opinion (and also fact to be honest).
Yep, go Liberty + Autocracy; great combo.
I'd jump into Patronage/Honor/maybe Commerce in between until you hit Industrial.
So to compare two:
Order opener gives +1 happiness/city. Nice
United front, largely useless unless you are spending your gold on Militaristic CS...and why you would, when you could spend it to buy your own units.
Nationalism, largely useless as in domination you are going offense, not defense.
Planned Economy, quite nice, but many smaller cities won't likely get around to, or benefit from, building factories.
Socialism, not helpful for domination really.
Communism, nice, but probably too late to matter much.
Finisher is fine, but you'll never get there.
The other thing is that is tends to be easier to finish Autocracy due to pillaged culture, whereas finishing Order is nearly impossible unless you seriously delay the game.
Autocracy opener = 33% less unit maintenance cost is huge gold saving
Militarism, cheaper rush-bought units, again, very useful
Police State allows for annexing good cities to boost happiness, quite useful (in moderation obviously). Spy crap, who cares.
Populism adds more damage when attacking with units already hurt. Every little bit helps.
Fascism is nice for selling excess resources, or boosting what you have if you don't have enough.
Total War comes a bit too late to matter much, but it's huge if you are still building units.
Finisher is icing on the cake.
Crazy nice to have +25% attack bonus to finish off any remaining obstacles.
In a domination game, there is absolutely no way Order is a better tree UNLESS you going to finish the game with only one policy in the tree...and frankly if that's the case, it does not matter at all as the game is obviously long over anyway.
If you are going a few policies into the tree, Autocracy is far superior, and only gets better the farther you go into it.
The real issue is that frankly, in many games neither tree will really matter, as they come too late to provide a huge boost.
BTW, i did a rather fun game where i finished Autocracy AND Honor.
I did Liberty, then most of Honor, then finished Autocracy, and then finished Honor.
My game writeup:
http://forums.civfanatics.com/showthread.php?t=484235