I don't generally see guro as done by myself in my mind, but if I had more of that inclination...

1) Pale blondes. I like them best, and while I'm biased towards them in movies and games and such where I rather they don't die over other characters (they usually do), I enjoy them more. Although I'd probably also try to have an eclectic collection, with a variety of different attractive women, I'd value the pale skinned blondes more. It'd definitively impact the way they get killed at the very least.

2) Blades. Swords and knives. I'd generally take them somewhere private to kill them rather than where I find them. Otherwise it beats the point.

3) Probably nothing if we're being realistic. But since it's not realistic, most of them, actually. At least the head, probably the torso. But this obviously I can keep them well preserved, which is mostly fantasy.

4) Something not literal.

5) I'd like to have a (female, preferably also a pale blonde) as sidekick