PP 15/30: ATo on Button

[Levi King]

I'm going to roll this one out street by street, because I think I played it terribly on almost round. All comments greatly appreciated.

PP 15/30 - Reads on the players:
MP2 - new to me, no read
MP3 - LAG pre flop (VPIP 50% and PFR 16%)
CO - Loose (VPIP 35%, PFR% 9%)
SB - About the same as CO
BB - Only slightly tighter and slightly more aggresive than the previous two

Preflop: Hero is Button with T[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/heart.gif[/img].
UTG calls, UTG+1 folds, UTG+2 folds, MP1 folds, MP2 calls, MP3 calls, CO calls, <font color="CC3333">Hero raises</font>, SB calls, BB folds, UTG calls, <font color="CC3333">MP2 3-bets</font>, <font color="CC3333">MP3 caps</font>, CO calls, Hero calls, SB calls, UTG calls, MP2 calls.

How do you like my 2B? How much do you hate my call of the cap?