Hand 1-PF I would have raised more since there were 3 limpers in front of you. Maybe 5-7x depending on table. I might have just flatted the flop and reevaluated on the turn after he made his move and I am in position.

Hand 2- I would flat PF (it is already heads up against an aggressive player and we have position). Flop I fold (I rearaise big if I think he is Cbetting with air but KQ is dangerous against a loose aggressive player with any A capability.)

Hand 3- NH good play