3 left in FT 22k, marginal spot with A2

[smittyuiop]

Villain has been the massive chip leader since we were in the money and has been playing uber aggressive open raising to just over 3xbb about 66% when it folds to him and I imagine he's doing it with 75-80% of his hands here. He's not afraid to call with a marginal hand if he's getting decent odds, earlier a shortie shoved for 9k and he called with with J4o from bb getting 2.2:1. Payouts are approximately $2800, 3800 and 5800.

Full Tilt Poker (3 handed)
Button 375,666
SB 82,984
HERO 52,850

2500/5000 blinds, 600 ante

Preflop: Hero is BB with 2[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
<font color="#CC3333">Button raises 16000</font>, <font color="#666666">1 fold</font>, Hero...

Fold I have 47k and m of 5 or so, shove and he folds (he's getting exactly 2:1) i'm at 72k, shove and he calls i'm at 108k or busto.