Some will say he was the best by virtue of him being Ole, which is fair enough. However, Jose was clearly more successful but happened to be a monumental prick.
@RedSky recently had some stats up, and Jose's record here wasn't actually too bad. He would be remembered far more fondly if it weren't for his antics.
To say Ole was 'the best' is incorrect and subjective. He's probably my favourite as he's obviously a legend and he clearly had the clubs best interests at heart. Beyond that, he's an average manager who achieved more than I thought he could. Jose is clearly a better manager but I would take Ole ahead of him, due to Jose being a self-serving cnut. Jose was still the better manager, though.