I find excessive gore a little tiresome in D&D. There's a place for it, and every table has a different tolerance for it, but I find past a certain point it's not really adding much to the games I've run and played in. Part of it is the system, I run and play D&D for the heroic whatnot, and constantly reveling in gore doesn't quite fit the theme for me. It's just dandy in other games, whether for, lets call it alignment reasons, or genre reasons. Part of it also may be that I equate, mostly subconsciously, that kind of play with the sophomoric silliness that comes along with early teen players, of which I was one. That said, I hand't given this any specific conscious thought prior to just now, so I'm just rolling with my initial thoughts on the subject.
After considering the topic for a while before posting, I've realized that as the GM, I tend to be more descriptive of the violence when dealing with larger, non-human creatures. I find that interesting because it wasn't a conscious decision on my part. I have no issue with excessive violence generally, and no line in the sand about human/not human. It's possibly something I do to focus on the inhuman horror/strangeness factor, as I do tend toward more Cthulhu-esque cosmic horror for by big bads over hill giants over whatever. A complete aside, but I thought I'd share. Great topic btw, kudos to the OP.