Buckethead's the only rock star who can come close to Billy's prolific songwriting. Just check out Buckethead's discography:
http://www.bingeandgrab.com/discography_years.html
Buckethead, Billy Corgan and Jimmy Chamberlain, those three could become one of the biggest bands in the world. They could produce a good album every month if they wanted to. Imagine the possibilities...