PLO400 - preflop question, Villain has AA so I do....

[punter11235]

PLO400, Paradise. I cover whole table by wide margin, Villain has 550$. I am in MP, Villain raises the pot.
I have : A[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/diamond.gif[/img]

I reraise maximum , folded to Villain who reraise maximum again. Now I have pretty good read on Villain. He has AAxx here, where xx is any decent two, he would play that with AAKK or AA98 but probably just call with the worst AA like AA25 and so on. He also will (of course) call my allin here. What's my move ? Is my AA good enough for allin or fold is in order ?

Best wishes !