Advice on this early position AA hand

[JGlo]

Party Poker No-Limit Hold'em Tourney, Big Blind is t15 (9 handed) converter
Early in a 2 table, it is like the 6th hand- no reads

MP2 (t1620)
MP3 (t1150)
CO (t530)
Button (t975)
SB (t1010)
BB (t1000)
UTG (t900)
Hero (t985)
MP1 (t1275)

Preflop: Hero is UTG+1 with A[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to t30</font>, <font color="#666666">1 fold</font>, MP2 calls t30, MP3 calls t30, <font color="#666666">1 fold</font>, <font color="#CC3333">Button raises to t100</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to t170</font>, MP2 folds, MP3 folds, Button calls t70.

Flop: (t422.50) 6[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>

Hero?