SNG mid-game: opening on the small blind 15 BB

[Slim Pickens]

blinds: 50/100
UTG (t1500)
UTG+1 (t2500)
MP (t2000)
CO (t3000)
Button (t1500)
Hero (t1500)
BB (t1500)

Preflop: <font color="#666666">5 folds</font>, Hero ???

Hero has one of three possible hands:
a) A7o
b) KTs
c) 33

BB is one of three types of players
i) A simple player, who will call a 3 BB raise with a lot of decent hands but will only re-raise all-in preflop with premium hands.
ii) A bad player who doesn't seem to understand the difference between raising and calling a raise, and is thus likely to have about the same range for each. He also doesn't really notice how big a raise is before he makes his decision.
iii) A very aggressive player who will call a push with a wider range than most players, and will attempt a re-steal with an even wider range of hands.

To start, let's make it a very simplified game where Hero's only two options are to either raise 3 BB or open-push. Hero also doesn't want a difficult decision when facing a reraise.