Hand 1: Why the preflop reraise with AJ? I can't think of many worse hands that are going to call you. I think his raise on the flop tells you you're beat.

Hand 2: Reraised you preflop, so you have to put him on big cards or a big pair. The check on the flop tells me that he probably had big cards that missed, likely AK. I think he called your turn bet just because it was relatively small hoping to hit one of his cards on the river, then tried to blow you out on the river after you checked to him, expecting that he may have you high-carded if you don't fold. Think you got him on this one. There's a nagging voice in the back of my head that is worried about a set of 10's though.

Hand 3: Raise on the flop if you're going to play this one, I think. I'd be inclined to just dump it when he bets the flop out of position, but I see where the overpair + open-ended straight draw makes it worth playing.

Hand 4: Good laydown.

Hand 5: He must have hit something, though I can't quite figure out what. Interested to see the outcome of this one.