I couldn't care less about Bellamy, but Tony Banks is great. He is by no means on the level of someone like Rudess or Wakeman, but he certainly deserves mentioning.
Sorry, boss, maybe not notes per second, but compositionally, he is their equal. He is easily my vote for one of the top three composers in rock.
Even the stuff that many pass off as "crappy" Genesis has an intricacy and uniqueness that is lost on most people. I often call Abacab their most progressive record (in the true sense of the word) for this reason. "Me And Sarah Jane". Verse, chorus, verse chorus pop piffle? Nah, prog masterpiece. Five sections, none which ever repeat with the unifying melody over the top. Brilliant.
The "Medley" part of the "In The Cage Medley" on 3SL is my favorite moment in recorded music ever, and Wind and Wuthering is in my top five albums of all time, largely because of his work on One For The Vine (a VERY special song for me, let's leave it at that), "Evidence of Autumn" is a top five song for me (also very special to me for various reasons) and the "Unquiet Slumbers...Quiet Earth... Afterglow" suite (yes, I know he doesn't get a credit on "Unquiet..." but he does on the other two, for which he is either the primary or sole writer). yeah, his lyrics sometimes suck, but so be it.
Any fans need to check out his two symphonic works, "Seven" and (what I call) "Sixes" (it's actually "Six Pieces for an Orchestra" or something like that).