Cerberus
Not to be a dick to those offering advice, but OP never complained from what I can see. He asked for feedback and was appreciative of all of it.
For my 2 cents, just keep getting it in good but, as others have said, don't forget that one overpair is still only one pair.
EdtheTed
I agree with what others said in that you were ultimately way ahead at the end and the other guy got lucky with his aggressive semi-bluff.
However, in a 5/5 game I'm not sure a raise of 5x with AA is enough. It really depends on the context of previous hands. In some games 8x or more might be required. A bigger pre-flop raise would ensure me folks are not going to wait around with J,8 or K, J.
With the flop coming "Q 10 9 " and his aggressive bet of $100, it indicates either 'flopped straight' or 'semi bluff' or 'set' or even 'two pair'. The larger pre-flop raise makes it more unlikely he would have flopped the straight or has two pair. I think it would lower his range to 10,10; 9,9; JJ or possibly A J. If he had QQ he might have re-raised pre-flop.
As the hand played out, if I had only one pair with that flopped board I would probably be inclined to call the $100 instead of raising.
But of course, if you ran the hand 4 times you would probably win three or more of them....