ALSO NO HATER COMMENTS ON EITHER (e.g. they both suck)
I HAVE EVERY RIGHT TO SPEAK MY MIND, AND WILL NOT BE CONTAINED, GODDAMMIT >O
Anyways, I think they both suck, BUT if I had to choose between the two bands, I'd probably have to go with Slipknot, even though they're not really even the same genre of music.
Stone Sour is lyrically retarded, as is Slipknot, but I liked the album Iowa, so meh :<
Plus, I never really got the whole mask-thing they have going on for them. Oh, and Corey Taylor's voice just isn't that great, imo.
...Sorry >_>