@Gregor: 2barreling turn with hands like AA is just bad. The Turn improves the caller's range so much more. I guess if this were a 3bet pot, the likelihood of the caller having 3X is much slimmer so I could argue for betting the Turn.
It's probably better to check turn and bet river cos it's just so hard to go for 3 streets of value on this turn card.
Also the board is kind of low and people don't play that many 3X hands. But if you increased each card by 4, meaning 4526 -> 896T, this would be a c/f from overpairs.
On this lower board, I still think we can't bet Turn with AA/KK, but we should probably c/c to induce from Ace highs which floated the Flop.