[Schiester]

Lack of stats makes things a bit general, so my responses are how I think I'd play w/o reads.

Hand 1:

4BBs + 1BB/limper; maybe 1BB for being OOP. I usually fold ATo in SB but I hate people limping from the button like this so I'm happy to raise here also. 3bet the flop and b/f this turn.

Hand 2:

Probably fold to flop raise. Your not likely to get value when you do hit your draw here. I might even c/c flop w SS villan to ensure I'm able to get value when I do hit.

Hand 3:

If you call that turn, I think you have to call the river. In this spot however, I'm more likely to be wanting a 'small pot'. I wouldn't 3bet pf (I do suck with blind battles though).

My line here would more likely be call pf, bet flop (closer to 70-75% pot), fold turn.