sounds like you lost the hand so villain had TT, JJ or AK/AQss

Unless you had a really good reason for check-call, I'd go for a CR or a bet-3bet on this flop (you won't get many better flops for AA deepstacked).

As played I'd rather check the turn and probably CR. Leading allows him to build the pot in position when lots of shitty cards can hit the river.

I think a bet-fold line with a smaller lead is good for this river.