Unlike most starting hands, the biggest advantage with AA is you don't have to worry about any over cards hitting on the flop, or turn or river for that matter. For instance, if the flop contains three cards of the same suit, one that is not suited to one of your Aces, and you get strong action from an opponent, you may be in trouble. After the flop, you should play aggressively until it is clear that you are beaten. In this case you can limp in and re-raise after your opponents raise, or just call and trap him or her. The only exception to this rule is if you find yourself in a situation where you are sure one of your opponents will raise behind you.
You want to play against one or two opponents at most, so your raise should be calculated to accomplish this most of the time in no limit. In both limit Texas holdem and no limit Texas holdem, the correct play is to raise from early position with AA. Below you will find information about the correct pre flop strategy with AA. The best starting hand in Texas holdem is AA.