I prefer women. I find them sexually attractive while they're alive.
I suppose it's kind of a power fetish... exerting my power over a dead body would mean nothing, since there is no power to be had, no pain to inflict or life to take.

In my fantasies, girls are almost fully dehumanized, they are very sexually appealing (cute faces, dumb smiles, large, but not huge breasts with pink nipples, slender bodies...wearing provocative outfits) but there's no other trait, they exist as living objects of sexual gratification. Most fantasies I have are with these kind of women, which are also willing to please and receive pleasure, but don't object to being snuffed. I suppose I prefer consensual stuff (which might sound conflicting with the power thing, but the power I want to feel more than anything is that of choosing whether she dies or not).

A few fantasies off the top of my mind:

-shooting with overwhelming firepower (anti tank riffles or straight out 10.5cm tank shells, lol) at a bunch of over sexualized women that are stripping on a stage

-being in hostel type of room with a very beautiful and innocent looking girl that gives me a lap dance or offers to please me, while there's all these tools around me with which I could snuff her (in this scenario, the girl is asymptotical to perfection and I usually don't really go ahead and make her suffer or die, it's probably just a peril scenario); a variation of this scenario involves just that girl, trying to please and seduce me, but instead I kill her in a violent manner, with a bat or something, not reciprocating any sexuality.

-being a werewolf or some kind of giant overpowering monster that takes a slut, rapes her and proceeds to snuff or eat her. Mutilation or eating of the erogenous areas is usually a big turn on

-having sex and killing her with a knife between the tits, right as we're orgasming, or a throat cut, or by strangling; there's a strong correlation between orgasm and death here

-being in an arena as a gladiator that has to execute slave girls to entertain the crowd (I got this idea after playing fallout 1 and when joining the raiders you had to prove yourself as being ruthless and the boss says he's got 2 women slaves that he's bored with and tells you to kill them in order to join, that shit turned me on for days)

Meh, these are a few of my thoughts on my sexuality, I could go deeper into explaining what makes me tick if anyone's interested (but I don't see that happening, lol)