UTG with AA in very loose 10/20

[TaintedRogue]

Okay, you've got the rockets and are first to act. Now, if you open/raise, you will get 5-7 callers (11 man game) 90% of the time. If you limp, you will get the same, with one of the early players raising. You cannot expect a re-raise if you open/raise, because there is no such thing as "isolating" unless they have really bad hands. I mean the SB will call 2 with 32 suited.
Do you open/raise, limp/call or limp/re-raise?