Hold´em Small Blind Defense Question
 

In a game where all of you play well, how much equity do you want to 3bet a button raise from the SB, assuming that you dont coldcall much in this situation ?

In a game without blinds or rake in a situation where you are short on chips you would ofcourse go all-in when you are above 50% against your opponents range, but in a real game there is alot more to consider:

1. You will be out of position for the rest of the hand, which means he probably extracts more value when he is ahead, than you do when you are ahead.
2. The rake should have some effect. (I dont play time charge very often)
3. You still have a player behind who haven´t acted yet who may have a profitable hand, which probably would cost you.

4. You have a little overlay when the BB folds and you get a discount on your play, due to your blind.
5. When you have the lead, he may fold earlier in the hand, making your actual "equity" higher. Folding equity?.

I may have forgotten some factors, but this should be enough to get discussion started.