Around 30. I usually don't go for oki setups unless I know my opponent isn't a fan of tech rolling.
Free Step Dodge
KING JAIMY
Brute
Depends on the oki set-up. If it's one that gives me substantial +frames on a safe force tech, I would sacrifice any damage short of killing the opponent.
Brute
In theory, anyway. In reality, I just do whatever looks cooler.
Hazard
I dunno about how much damage I'd give up, but I do agree with JAIMY's reasoning.