Quote Originally Posted by Erpel
ATs is not quite what I would consider Ace-rag suited, but A9s is beginning to look borderline.
If the board flushes your way, ATs = A3s. They play the same. But consider AT on a no-flush-possible board that is A9652. How many Aces do you beat? How many hands do you beat at all? How do you know when you're good?

The problem with AJ and AT isn't on the flop (though they can suck pretty bad there), it's the turn and river where you can really lose your way and spew chips drawing almost dead.