Actually, I wouldn't put him on my list of favorites - mostly because I like other things than what he does. But I do love Tool and have to admit that he is a major part of what they do. I think he may have one of the smallest egos of any big name guitarist. He seems to be all about what is best for the band rather than being showy for his own sake (he's said as much in interviews). And when you're in a band with Danny Carey and Justin Chancellor... well, let's just say that there isn't a lot of room left for amazing levels of flash.