The AA hand is a clear bet, villain hardly has anything left (50c?) and is ridiculously loose-passive. He can have 22-QQ AK and a whole host of other hands. Sure he gets there with a flush sometimes, but he's not getting much value on the river in return for the chase. Just bet the 50c into $2.50, if he got lucky laugh at him and look forward to the next hand with him.

The AJ is tougher, it's either a c/f or c/c, I definitely wouldn't be betting this river.