Roll control up to the stall - yup agree with that bjornhall!
As far as using the ailerons during the stall and immediately after to affect the recovery is concerned, I was always taught that you may end up spinning the aircraft. The aircraft may drop a wing during the stall, but if you immediately try to correct it with aileron before attaining safe flying speed, all you'll do is enter a deeper stall and potentially spin the aircraft.
PAT = Power Attitude Trim. The theory is that there must have been some reason that you entered or approached the stall, which would probably be an incorrect P A or T setting. Once you've recovered from the stall, reset PAT and continue onwards to destination, seeing and avoiding as you go!