I sold 3 copies of wolverine origins, and both covers of wolverine fallen son #1. your trends are on the mark, I sold several of the JSA kingdom come story line, and a few GL's..
I have almost all of the maxx comics and some other random horror comics. Most of the time I sell dvds & cds I have a ton of horror movies and punk & indie Rock.
Spider-Man and X-Men mainly, they're always hot titles. And the best sellers we have. We recently posted some bronze age Batman's and they didn't sell. We were shocked. We also recently sold the first apperance of Wolverine (Hulk 180 181 & 182), now that is a hot item.