stars 1/2 - straight out of position - check raise or bet out?

[JSampras1]

The raiser is a terrible player, 88% vpip and high raise %, so i assume he could have anything. MP1 is 47% vpip 4% pf raise 1.00 AF. The fact that he bet the flop and turn tells me he definately has an ace.

I'm certainly not folding, and i think my play was good as it stands. I thought that MP1 might raise an ace so i could reraise. I'm wondering if a better play might be check representing some busted 2 pair and hope mp1 bets so i could trap both for 1 more bet.

The danger of course is his AF is only 1.00, so he may just check behind with trips. MP2 is horrible, but not particulary aggressive so i assume he would check behind.

Give these stats, do u just bet out or go for cr>
PokerStars 1/2 Hold'em (7 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is BB with 5[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, MP1 calls, <font color="#CC3333">MP2 raises</font>, <font color="#666666">3 folds</font>, Hero calls, MP1 calls.

Flop: (6.50 SB) 2[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, <font color="#CC3333">MP1 bets</font>, MP2 calls, Hero calls.

Turn: (4.75 BB) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, <font color="#CC3333">MP1 bets</font>, MP2 calls, <font color="#CC3333">Hero raises</font>, MP1 calls, MP2 calls.

River: (10.75 BB) A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero ???</font>