I am not a big believer in the power of the pancake either. I would much rather have my O-Line guy stay locked onto his man until the play is over. Leaving someone on the ground can be disastrous if the play takes longer than its supposed to or the D player gets up quickly (there's even a VA for this, IIRC). I'd go with run block.
That being said, I do have a piece of AE that I use for a guard that has the Pancake SA. I was sick of rolling.