[cferejohn]

Use the hand converter. You'll get more responses.

That's a tough spot, and I'm not sure there's a great answer. Seems most like he has 77-JJ (other pairs possible too I suppose). Seems unlikely he would play AK-AQ this way (he'd probably push or fold to the flop bet). You are way ahead or way behind, with the former more likely. Given his probable range he probably didn't like that K much either.
You've got about 3500 left. If he does have the hand range I suspect, he's probably going to be hoping for a cheap showdown and you beat most of his range.

If you bet 1500, I have a hard time imagining he's pushing with anything that you beat, so you can probably muck.

Or, if you check, he will probably check behind. He may then bet small on the river, which you can call. If he bets after you check on the turn, that's a pretty ugly spot too, since if you call, you are going to be awfuly pot-committed. I think I would probably go with the bet since it makes the hand play a little easier.

Fwiw, I probably would have just called preflop unless I knew this guy was aggressive, but I think raising is also reasonable. I'd probably raise a little more given that you will be out of position the rest of the hand though. You'd rather just win in there, and if he pushes, you can fold.