hand 1 - b/f is good here, and I might c/c here sometimes too

hand 2- why the slowplay? Bet flop. As played, I dont mind check/call on the river, depending on how aggressive he is. check/fold is fine against nits

hand 3 - ummm.. you realize you have tptk nut FD right.. on the flop? fill it uppp, raise. Raise turn. Raise somewhere.