Oof, I didn't see this post at the time because of a settings issue, but here goes...
I find Toppi's work just amazing, and one of those guys who are not just technically and artistically brilliant, but also bringing their own, inimitable style to the table, like Moeby and Rich Corben, let's say.
I also must admit that I'm generally not a fan of B&W, altho there are some exceptions. Jacques Tardi easily comes to mind. Okay, let's see... Guy Delisle's amazing Shenzhen & Pyongyang travelogues. The two masterpiece District 14 series, if you don't mind the art being pretty loose. (incredible stories, tho) And the work of Norway's Jason... Bastien Vive's various works, some pretty wild and NSFW, others more conventional. And last, we might possible call Jim Woodring an honorary LC artist; in any case, his wordless comics are spellbinding an utterly unique indeed.
Yeah, let's go with that list for now! :D