Here's some info for ya on my preferences and tastes.
* I mostly read shorter fic (think <30k words), and 95% of what I read is E-rated (or at least has a sex scene); same for podfic (generally shorter than an hour, generally involves a sex scene). As for art, SFW or NSFW are both equally great.
* I LOVE soulbonding/soulmarks/soulmates fics, and sentinel/guide fic.
* Fluff is a huge plus. Falling-in-love/friends-to-lovers/declarations-of-love fics are fantastic.
* As far as AUs go, I really, really love coffee shop/bakery type AUs, and anything involving tattoos/piercings. Anything domestic.
* I love anything involving werewolves!
* Happy endings are a must.
* If you go for something E-rated, I really, really enjoy kink.
Star Trek: McCoy/Chekov is my favorite but I also love Kirk/Spock. Reboot or TOS, either way!
Mass Effect: Garrus/FemShep is my favorite, but I'm really fine with just about any pairing. If you prefer to go for genfic, I LOVE Wrex, so anything involving him would be amazing. I'd rather avoid anything involving death/mourning, so either handwaving the end of ME3 or having it set in ME2 is great. Any AU where no one dies is also great.
Firefly: Any pairing is fine, here, I just love everyone on the damn show. I am a big fan of Mal/Simon, though. Gen also great.
Things to avoid:
* I find pregnancy gross in all circumstances (sorry) so no fpreg or mpreg, please.
* I'm not a fan of lots of angst, and I can't handle major character death or grieving feels.
* I can't stand torture, animal abuse, non-con, or slavery. (NOTE: BDSM isn't torture or slavery, to my mind- it's consensual, yo. Also non-con roleplay is fine)
* Not a fan of prostitution or porn-star AUs. Kidfic is also not my thing.