Pete Sinfield and Roger Waters definately Sinfield wrote lyrics for King Crimson, Emerson Lake and Palmer and other artists. also Pink Floyd should have stopped after Roger left... he was the main creative force and as far as i'm concerned they weren't Floyd without him.
Billy Corgan? I'm not sure if I know who that is. I wanna say the guy from Smashing Pumpkins..... Is he?
He is very good but not compared to Morrissey, particularly the Morrissey of the Smiths. Wit, emotion and devastingly accurate. The lyrics to 'The Hand that Rocks the Cradle' are amazing. But my favourite lyrics are 'In my life' by Lennon.
Ronnie Van Sant from Lynard Skynard and Jerry Cantrell from Alice in Chains....very good song writers.
Gunther Theys from Ancient Rites Aaron Stainthorpe from My Dying Bride Nergal from Behemoth Alanis Morissette Tori Amos