Hand 1 - good
Hand 2 - yah fine

Hand 3 - You're lucky you were ahead here, or that villain in this hand was willing to stack off with top pair ass kicker. If you're always felting AJ in this spot though, you'll get into trouble as you move up I'd imagine. I would need a read against villain that he overvalues any top pair to feel good about this.

Hand 4 - Why not bet this flop? Against two opponents I think you need to bet here, its not like your hand is that strong to be letting two guys see a free card. I'd prefer a bet flop, bet turn, check through river line than a check flop and bet turn and river I think.

Hand 5 - fine