villain is 30/16. I have been raising alot and I raised a few limpers the last time I was in the BB. I also haven't showed a hand in a long time, so who knows what they think, I wasn't playing maniacal though. From his action it seems my hand is likely a coinflip, his most likely hands, IMO, are 22-88. So should I push, call, or fold?

PokerStars No-Limit Hold'em, $0.25 BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Hero ($42.35)
UTG ($24.85)
MP ($10.85)
Button ($17.80)
SB ($29.50)

Preflop: Hero is BB with A, K.
1 fold, AceT(z)en calls $0.25, Button calls $0.25, SB completes, Hero raises to $1.25, Button raises to $4, SB folds, Hero?