($27) 88 vs a raiser, shove or fold?

[flopton]

Villain has been raising from early and middle position frequently, he raised 3x from the CO and hit KQ to get the chips. Also just raised last UTG to 3xBB at 75/150, and has been very loose/aggressive. What kind of raising/calling ranges would you put him on?

Poker Stars
No Limit Holdem Tournament
Blinds: t100/t200
6 players
Converter

Stack sizes:
UTG: t2100
UTG+1: t4640
CO: t1115
Hero: t1775
SB: t1370
BB: t2500

Pre-flop: (6 players) Hero is Button with 8[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/spade.gif[/img]
UTG folds, <font color="#cc0000">UTG+1 raises to t600</font>, CO folds, <font color="#cc0000">Hero ?</font>