I could not more emphatically second this comment.
(aka, EXACTLY.)
See when i want tight and heavy I go for Scorpions, Ratt, Judas Priest, AC/DC, Dio, Metallica, or Alice Cooper. I want roots I go for Junior Wells, Buddy Guy, Muddy Waters, Koko taylor, and pinetop Perkins. If I want to sit back and enjoy, I go for Pink Floyd or something orchestral like Stravinsky. All very different genre’s but I have no problem getting around Led Zepplin. They aren’t heavy, they aren’t blues, they aren’t relaxing, and they aren’t structurally interesting. I can find nothing they do that someone else doesn’t do better. YMMV of course.
Led Zeppelin is my pick. Pink Floyd does nothing for me.
They’d be pretentious if they had to pretend. Considering they really were* as good as they thought they were, I don’t think it counts.
You can pry my PF out of my cold, stiff hands when I’m dead.
(I just saw Roger Waters in concert less than a week ago, btw. It was the second time I’ve seen him on this tour. It was awesome.)
*yes, I know that is just my opinion, but it’s my very firmly held opinion and it isn’t likely to change anytime soon. You don’t have to agree.
Annnd I continue reading the thread and see that AHunter3 beat me to my point. (curse youuuuu!)
I don’t relate to Floyd like I used to when I was heavy into marijuana. I don’t relate to Zeppelin like I did when I was heavy into alcohol.
Of the two, I much prefer Led Zeppelin. While both bands did some really heavy music, a lot of Zeppelin’s earlier bluesey stuff had a great beat. After a while Pink Floyd’s introspective stuff can get boring and stuffy. As a matter of fact, both bands had been overplayed so much that around 1987 I was pretty much burned out on both.
After a few years’ break from both bands, I like the more extroverted sound of Zeppelin and their strong base in blues rhythms.
And Physical Graffiti is a solid album, all the way through both disks.
June 15th in Irvine, man! I can’t wait! This’ll be my 4th time seeing RW solo. 
I saw Pink Floyd just once, in 1975 (no, not for 20 minutes). This was about five or six months before Wish You Were Here was released. The first hour of the show was all unreleased material: they opened with “Raving and Drooling” and “You’ve Got to Be Crazy” (prototype versions of “Sheep” and “Dogs” respectively), and then an extended “Shine On You Crazy Diamond” with “Have a Cigar” in the middle. After an intermission, they played all of Dark Side of the Moon, and encored with “Echoes.”