[NSFW] Top, bottom or switch?

TGIF and time for some kink. For those that find power exchanges, S&M, B&D, D&S, fantasy, role playing, etc. to be hot, hot, hot… which role appeals to you? Are you always the top (definition 2), always the bottom (definition 1), or are you a switch (definition 1)?

Whichever role you love, what sort of power exchange/s do you apply it to? Is it S&M, B&D, D&S, fantasy, role playing, rubber, water sports, emetophilia, adult baby games, or the whole alphabet soup?

Oh and if your favorite flavor is vanilla (definitions 1 and 2), feel free to rail against all BDSM sorts of play and hold forth for the KISMIF theory of sex.