HERO [ J , 7 ]

ANTES/BLINDS
HERO posts blind ($0.25).

PRE-FLOP
MP bets $0.50, HERO calls $0.25.

FLOP [board cards A ,J ,J ]
HERO bets $0.50, MP calls $0.50.

TURN [board cards A ,J ,J ,7 ]
HERO bets $1, MP calls $1.

RIVER [board cards A ,J ,J ,7 ,5 ]
HERO bets $2.50, MP bets $5,

HERO...

So the question here is: should I re-raise all-in or should I worry about the AA, or AJ, and just call...

Remaining stack size: $17

Push! I don't think AA is very likely at all considering the preflop action, AJ is possible but with him check-calling all the way the flush should be the most common holding for your opponent.

This is exactly what I said, but a colleague of mine felt that the proper course of action was to just call the raise since I didn't have the absolute immortal nuts.

I figured it was close enough to justify pushing in my remaining chips.

I'd re-raise to $10-12 so he can call with a flush

of course "Id call if he re-raises all in.

push it. push it real good.

i just felt like saying that.

it depends on if he would fold a flush to a push. the worse your opponent is the more ide try to get paid off all the way.