I think more often then not, your hand is good here. However, it really depends on the hands you've seen this guy in - especially the ones where both you and him were involved in action. If he's bet a lot into you frequently and you've folded to his big bets, then your hand is more likely to be good here because he'll probably be thinking you're going to fold and he might do this with anything. Your thinking and calling on flop probably indicates weakness to him.

However, this logic can be reversed on you. If he's been very aggressive lately, he does have a queen, and he's a smart LAG then he could put you on a mid PP and try to get a doubleup call.

I think a high PP is not very likely here. Most of the time with an aggressive player a small preflop raise means his hand is small. If he's a smart LAG, he won't be pushing this with AA. However, this is largley read dependent. You almost have to have some reads on what this guy will raise to 2xbb with.

Basically, I think most of the time he's on a mid/low PP or face cards <font color="black"> </font> . Therefore, its a +EV play to call against a very aggressive postflop player.