[Atropos]

I would push all-in because:

a) Calling entices the SB/BB to play as well. With these shallow stacks its very difficult to play postflop, at least for me. One bad beat and you cant fold top pair hand types anymore, which sucks.

b) Reraising small only leads to autguess yourself. If he pushes he probably has you beat and you can fold, or not? If he pushes the flop, was it a stop-n-go to extract value or a pocket pair or weaker ace trying to get tricky? For me this is very difficult to see.

c) Pushing all-in is very effective when done for the first time, he might fold hands like small pocket pairs.