I think Crash Diet was just saying that Slash is better at writing riffs than Richie is, rather than saying he is a better guitarist. Richie's songs are very rarely riff based, whereas Slash's and Guns n Roses are almost all riff based, therefore I think it is only fair to say that Slash is better at writing riffs. I still prefer Richie's playing though. Whether or not he is better.........well.........6 of one, half a dozen of the other really.

Jimmy Page rules though!!!