hand 1:
you're ahead. i don't think he's bluffing, but i think you have him beat nearly every time.
preflop, raise to 15+.

turn i think is an easy call. AA and KK are unlikely. all hands that beat you are unlikely. a lot more likely is TP or a combo draw

hand 2:
standard. you can't fold at any point in this hand. if anything you want to raise the turn, but a call is better.

hand 3:
i think his stats say fold. although i'm not good on stats and i need utilize them more. i would call the flop and reevaluate on the turn. either checkcalling again but probably checkfolding. but the only reason is because i suck with stats and i just can't give the hand at this point