For me;
Led Zeppelin- Reason being? Never was a huge fan of their music. I do like "starway to heaven", but I think I just can't stand the guys voice and I can't stand hearing "Whole lotta love" on every classic rock station every hour on the hour...
The Rolling Stones- Mick Jagger is annoying and always has been. Never liked his appeal or his voice. The dancing is what did me in.
U2- I do like a few songs off of the "Joshua Tree", but I could never get into them. I really don't care for Bono on or off the stage and U2 bores me..
The thing with Nirvana is, I like Nirvana. But, I feel like all of these second generation Nirvana fans are a little stupid. I do think Kurt Cobain put out some decent stuff, but he wasn't a genius and he's not my idol. I just wish fans were a little more mature than that...
I saw somebody really rip on Oasis and I'm going to say, I like oasis. I have since '96. One of the things I love about them is, they know they ripped off the Rolling Stones, T-Rex and The Beatles, but they admit it. I think that in itself takes courage because most rip-off bands won't admit they ripped anyone off! At least Oasis does and all they ever did was write good pop songs.. Plus, "She's electric" sounds like a really good Brit-pop tune rather than a Beatles rip...