Hand 1 is superstandard live.

Hand2. I don't know why everyone hates this so much. I'm assuming they didn't see the SB flop c/r. Your position nows sucks so terribly to extract value on the turn that I don't mind 3betting there and then. People playing live will always be more prepared to put in the two extra after already putting in one but they will still fold the turn for two cold. If you called the flop, it would be in the hope that UTG 3bets so you can c/r the turn. I don't see this happening a lot when the SB just checkraised the entire field on a low paired board.

Hand 3. Bet the flop for god's sake.