However, ever since I came on the Lesson, people have said that Prince can do everything including playing rock better than rock-musicians which I don't agree with. That's all.

I mean, I like (not love) 70's hard rock band Deep Purple. However, a lot of their fans say that part of their brilliance was that they could play funk and R&B-inspired music (see albums like "Come and taste the band" or several songs on "Stormbringer") as well as hard-rock. However, *I* don't think they could do that very well at all and that it is a moot point to bring up as an argument for them being better than, say, Black Sabbath in the same era...