I have to agree with Aro here under almost any circumstance. Playing at a full table there are simply too many people who can outdraw you with a far weaker hand. It is vital to isolate one or two other people to play the hand against as to minimize the liklihood of losing the hand to some idiot playing a 9 5 off suit or something. Doyle Brunson says in Super/System that aces is a hand where you'll either lost a big pot or win a small one, and anyone will tell you that winning a small pot is better than losing a big one. In order to maximize your chances at the former, I recommend doing your best to muscle those weak and drawing hands out.
On the other hand, playing 3-way or heads-up I like to get a little cute with rockets, or any premium hand for that matter. Any ace is a pretty strong hand heads-up or 3-way, so a pair is huge. I feel that there is no point in forcing people out when you have such a great hand. Play them weak, as nobody will suspect you for an ace if you don't raise preflop, and hope that one or both of your opponents hits the flop (but not_that_ well

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