Ok, here goes:
Led Zeppelin; No; I don't care for extended solos, that cheesy, heavy guitar sound, etc. Plus, had they never been around, the Stone Roses might not have sturabled into the disaster that was Second Coming.
Joy Division; No; I planned to vote yes because New Order was so great and JD did have a few good tracks, but overall their oeuvre is bland and fairly unexciting.
Elliott Smith; No; Not really into the indie folk thing here.
The Beatles; No; What's the big deal? Their lyrics are lame and the tunes are great for the first dozen times. After that they get really old.
The Velvet Underground; Yes; Their first two albums are classics.
I didn't vote for King Crimson or Wu-Tang Clan because I'm not really familiar with them.