As you may already know, the Hall is the creation and clubhouse of a bunch of nerdy geriatrics who wouldn't know rock if you beat them comatose with a Les Paul. So it's unsurprising that these self-appointed "historians" and "experts" have determined that Jackson Browne, Eric Clapton, the Eagles, the Four Seasons, Billy Joel, the Lovin' Spoonful (the Hall website actually says that Spoonful frontman John Sebastian "launched a successful solo career that found him giving one of the more memorable performances at Woodstock in August 1969"), and the Young Rascals deserve induction, but Yes, King Crimson, Rush, and Emerson, Lake & Palmer, to name but four, are to be ignored for as long as humanly possible.
Rush has been eligible for the Hall of Fame since 1999. ELP, Yes, and King Crimson have been waiting since 1994, while the surviving members of the Flamingos and the Orioles hobble to the podium. (Who? Exactly.) Even ex-proggers are shut out. Not only have Peter Gabriel and Genesis been denied nomination; their former vocalist, pop über-hack Phil Collins, can't get in either. (Okay, we're not upset about that, just shocked, in light of previous inductions.)
Instead, the Hall would rather honor performers whose work can be turned into Broadway musicals. It should be obvious to the most minimally aware rock listener that the popularity of acts like System of a Down, Coheed and Cambria, and the Mars Volta makes this the perfect time to start inducting their forefathers. But we're talking about an organization headed by the moss-ridden founder of Rolling Stone. So don't hold your breath.