I have an SG Special, and I love it, although I have no other SGs to compare it to, apart from my friends ancient Epi SG, which isn't too nice, although I think it was pretty cheap, but it just feels a bit cheaply made, and the neck isn't nice... Although I have a friend with a newer Epi SG, and he really likes his. I haven't ever played/seen it in person, so can't really make any comparisons i'm afraid.
Also, I think the Special and the faded are pretty similar, just the finish is slightly different. Don't quote me on that though, as it's probably wrong... :P