I agree with Radiohead and Nirvana.
Tool, well...I like Tool, but yeah, Maynard does tend to annoy me, sometimes I think it would be rather swell if they did an instrumental album. Some of their songs are pretty great, but they just have this tendency to verge on sounding very generic every time they begin to try to sound 'heavy', which is aggravating.
Pretty much every popular 'alt.' band of the 90's is pretty over-rated. One that is UNDER-rated, however, from that same time-period, is My Blood Valentine, in my opinion. Forget Nirvana, The Smashing Pumpkins, and the likes. It's all about My Bloody Valentine, and Swans, too, both of which played on through the 90's, though both bands were, in fact, given birth to by the 80's.
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I try to prevent my ego from obscuring my greatness.