1 Tough Value Bet, 1 Tough Fold

[gaming_mouse]

First the fold, because I think it's correct given this oppo but some may not.....

UTG (36/8/1.2) raises, I 3b AA in BB, he caps
J58 flop, which I c/r.
9 turn, b/c.
T river, b/r... Can you fold here?

Now the value bet on a double paired board....

1 limper, SB completes, I raise 99 in BB
668, I bet and both call. these guys are loose passive.
A (putting up 3 diamonds), SB checks and only he calls my bet.
A, and SB checks again. Who bets here?

My thinking was that the A is a card that makes you think it'll get checked behind, so you bet out with it, so he prolly doesn't have it. Also the flush pops the turn.