Yeaaahhh this album is pretty much perfection. Pink Floyd made a masterpiece with Dark Side, and my love for it is immense. Their stable use of the synths with great guitars and awesome vocals make this a 100. I will say this though: its not my favorite Floyd album. I think that their other albums with shorter track listings (though around the same runtime) are more unique. I'm a sucker for extremely long songs I guess, which is why I put Wish You Were Here over Dark Side, though both are impeccable.
Top 3 tracks
Tied for 1. Us and Them, Brain Damage, Eclipse
THE SUN IS ECLIPSED BY THE MOOOOOOOOOOOOOOOOONNNN *thump*