this again....

it depends on the player. I read a "good" player for KK yesterday when I had AA, so I bet 2 times the pot on the flop, and he pushed. Exactly what I wanted him to do

Against a fish, I'd give him odds to call, hell i might not even raise from SB if i think BB is weak (if table folded).

generally, a 2-3 reraise is good enough to keep a weaker player in the hand. Maybe more if he's loose. Reads are so important for NL.