Well I'd preferably be a genocidal God, like if Hitler was Dr. Who, but I'm not a fan of either of them.

1. Tyrants. Ironic, I know. Bullies in general, but particularly bullies telling everyone how to live their lives. Shitty people, anyone that insults someone else without it being in good fun or mutually condoned.

2. Torture them. Death only after great pain. Let them not see their death coming and pray for it to come quickly. Drag out their pain for hours, days, or years if I can, then end them while they think they're going to suffer forever.

3. Nothing, if I'm not sure I'd get away with it. Everything, if I know I can. I'd polish their skeletons and keep them hanging around, maybe upside down. I'd make leather clothes and furniture. Have their skin draped against a wall like a poster, or impale them up their ass and post them in the center of my bedroom and make a lamp out of them. Maybe with light bulbs in their ears, eyes, nostrils, and mouth. Have their corpses bent in humiliating ways and their pained faces stuck like how they died, using stitches and gels or whatever.

4. I'd not give them my name, but if you want a named psychopath (s)he can be called Gorey Tori or Gorey Lori.

5. I like scythes, A lot. You can swing them from around a corner easier than any sword. Mirrors can be useful too.