$55: Overpair on paired board- Bet out or check raise?

[AA suited]

PartyPoker, Big Blind is t60 (9 handed) Converter on pregopoker.com

UTG (t825)
UTG+1 (t580)
MP1 (t1750)
HERO (t1055)
MP3 (t1175)
CO (t840)
Button (t1115)
SB (t1690)
BB (t970)

Preflop: HERO is in MP2 with T[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/club.gif[/img]
<font color="gray">UTG folds</font>, UTG+1 calls t30, <font color="gray">MP1 folds</font>, HERO calls t30, <font color="red">MP3 raises t60</font>, <font color="gray">CO folds</font>, <font color="gray">Button folds</font>, <font color="gray">SB folds</font>, BB calls t30, UTG+1 calls t30, HERO calls t30

Flop: (t90) 8[img]/images/graemlins/spade.gif[/img] 2[img]/images/graemlins/club.gif[/img] 2[img]/images/graemlins/heart.gif[/img] (4 players)
BB checks, UTG+1 checks, HERO? [img]/images/graemlins/confused.gif[/img]

No reads.

Bet out or hope preflop raiser (MP3) bets so i can check raise?

and why is that line better?