'Course I do o_O I've listed some already SOMEWHERE around this forum... Darn my memory. But:
1. The story has to be realistic.
2. The characters may be a little OOC, but not too much.
3. There shall not be too many writing errors.
4. A good plot is a plus, and it can save the story some if there are some grammar or spelling mistakes.
5. Not too many OCs. (I know I'm kind of talking myself off with this one, as I have one fic that basically wraps around Bryan and Ray only. But they work in a supermarket, they are in contact with many people - I mainly use 7 OCs at total max. Never at the same time, and all are introduced very well, so the reader should know who they are and shouldn't get confused. Though, there are only 3 somehow important OCs to that plot. [Ki-chan and DarkSpiral are prolly now guessing which of them I mean.

])
I guess that was it... I'll let you know if I come up with something more.
You could try to make me read:
- romance fics. I luffs.
- action fics. Those who still make some sense and aren't about fighting fighting fighting oh one nasty word fighting fighting fighting.
- angsty fics. If they are good (plus is if a main character gets hospitalized [I know I'm weird but I've read two good hospital fics and am a fan of all hospital series airing from TV]).
Don't even bother to talk me to read:
- cross-over fics. Most often they are really bad and crappy. And if they would be really well written, had a good plot to them and the characters were IC... Don't bother. I just loathe them.
- angsty fics. This is with the bad ones, no real plot, every one get hurt, every one die, there's nothing else than world's being crushed. And the spelling and grammar sucks.
- weird pairings. Alright so you might ask me to read it if it's really awesome with a reasonable plot, ICs and the writing is flawless. This one also depends on who is asking me to read. (Ki-chan is very good in talking me to read weird pairings and make me like them, too...)
Whoa... rantrant.
And FP *feels stupid but has to ask* mage as a wizard of some kind?