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A much better question is not whether to raise, but how much? I generally pop it to $55 at the 22s and 33s. How much is a "good" UTG Aces raise assuming level 1 and no real reads on the table?

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4xbb for me early. I bump all my bets up in the beginning above 3xBB and then bring them down to about 2.75xBB after blinds hit L3/4...

I find in the very early stages that opening raises with legitimate hands (the weaker ones mostly -- mid position AQ raise for instance) will just get flat-called behind by too many people with junk. So I bump it up on principal for all opening raise hands that I move with. One or two junky callers is nice, that's your goal; but it becomes a problem for AA when you have four ride alongs because you only minraised or limped. Then you get angry because you SHOULD have won, and the guy who just hit two pair w/his 76o has all ur chips.

Raising to 60-70 here discourages a horde behind you, does not cramp your oppos ability to reraise you big if he so desires (yay!), and (if called) builds a bigger pot while you have a good hand so postflop you will have a chance at extracting more money. (opps less likely to fold in bigger pots, and the 1/2 pot bet you make on the flop will be larger because of the extra PF money)