How bad is my opponent's line vs me

I thought his line would be donkish but after second glance I don't hate his river raise that much. Hero in this hand has donkish stats at 26/12 where I have a predictably narrow range on this river.

PokerStars Pot-Limit Hold'em, $4 BB (7 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

SB ($293.50)
BB ($147)
UTG ($406)
Hero ($398)
MP2 ($633.90)
CO ($419.70)
Button ($900.90)

Preflop: Hero is button with A, A.
1 fold, MP raises to $14, 2 folds, Hero calls $14, SB calls $12, 1 fold.

Flop: ($46) J, 9, 5 (3 players)
SB checks, MP bets $32, Hero calls $32, SB folds.

Turn: ($110) 6 (2 players)
MP bets $76, Hero calls $76.

River: ($262) 2 (2 players)
MP bets $116, Hero raises to $284, MP calls $160 (All-In).

Final Pot: $814

Your turn/river bet sizing makes me think AA is very frequently the best hand here.

Meh, I'm almost never flatting Aces pre-flop because they help balance out all the crap I'm raising on the button.

Flatting the button to draw a second barrel is reasonable enough, but I'm raising the turn. $175 works.

I just don't like giving out a full 7 card hand against my Aces before showing any aggression.

playing AA and other big hands like this may not be great for balancing a lot of styles, which sometimes isnt important, but in isolation this hand is good.

the question is where to raise, not if a raise is good since its good on all streets.