pf with aa nl cash

[whaahhahahah]

situation might not come up again, but i'm curious about what people think. i've been reraising pf a lot, something like 5 of his last 10 raises. he's been folding a lot, hasn't played back after the flop yet.

stacks 600. 2/4 nl.
i'm dealt aa.
opponent raises to 12. i raise to 40. opponent raises to 120.

what do people think is more +ev? pushing pf or crai on flop? anyone go for a small raise pf?