the thing about metallica is, they're probably getting in based mainly on the black album, as it was their most commercially successful album. Megadeth and Slayer (especially) never really did anything like that. I do agree that Maiden, Purple and Priest should be in though.
i can see that. if metallica continued to release ride the lightning style stuff they are probably sitting in the same boat as slayer and megadeth( who i think will get in one day)
it just really pisses me off with purple,maiden,priest,
but really sent me over the edge when it comes to the hall is how dio doesnt get in with sabbath yet sorum and dizzy get in with gnr.