[Ian M.]

Hand 1: I like the preflop raise. I would bet out again on the turn.

Hand 2: I dont like the preflop raise here. I would probably fold this. I would just call this down on the turn. You have shown a lot of strength in the hand and now the button is raising you. I would call the turn and check-call the river if you dont improve.

Hand 3: I would fold this turn.

Hand 4: This is a tricky hand, I think your actions preflop depend on what you know about the players raising standards. Its definitely a raise or fold situation, if he is a tight raiser I may fold here, if not I would reraise like you did.
On the flop, I dont think the raise for a free card is profitable here. Too often you will be 3 bet by the original better, or they wont check to you on the turn anyways. I would just call on the flop to see the turn cheaply.