Even after listening to many Zeppelin songs on the radio (My station loves Zep, even having Zep in the name, (KZEP) so they play it often and sometimes devote entire days to Zeppelin songs.) I still don't know what the big deal is about this band. I don't dislike them, but my attitude is always a nuclear sized MEH. I even find, as a drummer, Moby Dicks drum solo to be bland and boring. They've never WOW'd me, ever, simplistically or not.
I believe Coheed and Cambria (sp?) would be a good band if they had a different singer. I don't mind high voices, but his breaks goes above and beyond annoying.
Even as a die hard Rush fan, I can hardly stand Geddy singing some older tracks, like Temples of Syrinx (and other related 2112 sections), and Hemispheres in particular.
If you're a bassist, and John Entwistle isn't one of your influences, stop playing bass.
I never appreciated Tool's album covers, nor their music
Those are my crappy opinions.