So, are you trying to say that I can't like power metal if I don't like say Helloween and Iron Maiden? Are you also trying to say that I can't like rock if I am not into the Beatles or the Rolling Stones? Or Elvis for that matter?
I kinda see where you're coming from, but your argument is not valid as far as I know. In my opinion Riverside is way ahead of Pink Floyd as far as music goes, simply because I like Riverside way way way more than I like Pink Floyd.
That being said, yes, I believe Riverside is way ahead of Floyd as far as I'm concerned. One may disagree or say I'm biased because I am their fanboy. It is what it is.