Because I am listening to Pink Floyd right now, I'll start with them. Without Pink Floyd, I believe that the techno/dubstep movement would never have taken place. Looking at DSOTM, Breathe has a lot of effects to it that are so unbelievably different to the sounds that were going on at the time. I believe that Roger Waters is really a musical genius with his writing. Many artists tried the concept album, or rock opera, but he is the best at it. Just look at many of their albums. DSOTM, Wish You Were Here, and of course The Wall. Concept albums are the hardest things to create, I would imagine, and Waters makes them all so deep. DSOTM is largely influenced by Syd Barrett and his mental health decline, but his ideas of greed, and time that are present in the album are unbelievable. WYWH is another album that largely deals with Barrett, with songs such as "Shine on You Crazy Diamond" and the beautifully written "Wish You Were Here". Moving on to The Wall. This has to be my second favorite album of all time. DSOTM is my favorite, however I think that this album is so much more complex than its predecessor. Listen closely and you can here, "...we came in?" at the very beginning of the album and the final words of the album are "Isn't this where..." This of course would make the album a loop. It starts and ends with the same sounds, and it has that awesome phrase. This is the album where everything came together for the bad. I don't think that David Gilmore had a better guitar solo in his life than he did on "Comfortably Numb". I also think that song writing from Waters is so complex and deep. The build-up of Pink, from birth to self isolation to destruction is great. The ideas that he wrote about were complex and it has so many different levels to it. The satirical writing that comes along in "In the Flesh Pt. 2" is also an added bonus.
I think this will be the first of many rants on here. I need a place to share my insights as well as my knowledge, and this seems like a good place. So stay a while, Have a Cigar. (Pun intended.)