AA against total maniac

[Richie Rich]

I think you're leaving out some important pieces of information, like: (a) your image at the table, (b) what the standard pf raise is, (c) the overall action at that table, (d) if you and villain have a history, etc.

But based upon the info that you've provided, this is a pretty easy call, imo. After all, if he had 22 or 5-x, why would he want to scare you out of the pot before you even bet on the flop?