Pink Floyd. Probably the greatest band of all-time.
Guns N' Roses will always be in my heart as #1 because they were the first band I was really obsessed with, but musically Pink Floyd are fucking brilliant and these are the two bands I rate higher than anything there ever was, is and will be.
I got into Pink Floyd relatively late, a couple of years ago, but since then I discovered so much amazing material in their discography no other band could compete with that.
People always argue which is their best album and the mainstream usually says Dark Side Of The Moon. I would rate them something like this:
1# The Wall
3# Wish You Were Here, Dark Side Of The Moon
4# The Division Bell
5# The Final Cut
6# Saucerful Of Secrets, Meddle
7# The Piper At The Gates Of Dawn
8# A Momentary Lapse Of Reason
9# Obscured By Clouds
10# Soundtrack From The Film More
11# Atom Heart Mother
All of them are
, with the last three being a little weaker but still all right.