I cannot deny my... Attraction to the elements of Slaanesh. I love metal, I love art (well some of it... I have my tastes), I love speed (can't get enough of my motorcycle) I love powerful expressions and I would certainly take Slaanesh's charismatic gifts. Ehm... Yeah.
Slaanesh all the way. I love sex and drugs, and tend to take things (food, sex, drugs, music, air) all in excess. My best friend is tzeentch; always about changing the cloth of fate and making plans form to his whim. Its an interesting result when were together.
For real life leisure purposes, mostly Slaanesh. I actually use the thought of Tzeentch as an agent of change to help me decide to make positive changes in my life sometimes.
Of course we can The chaos gods are built upon the "chaos" in our lives. When you're feeling sick or just getting plain old=Nurgle When there's wars over some Deity or a donut shop (or whatever other crappy reasons countries come up with)=Khorne When time is flowing and obama has new healthcare plans=Tzeentch When you party hard=Slaanesh The chaos gods grow stronger from the simplest of things.
None of them. The four Chaos deities represent the extreme sides of the emotions they're associated with. In fact, I doubt I could find anyone in 40k that I could realistically relate to.
Nurgle. I get ill constantly and spread it around everywhere I go but no matter how ill I get whenever anyone catches it off me they get it about 10x worse.
If I start to see people running around with chain axes collecting blood and skulls I will call GW personaly and say they have a smallish problem at their hands