Before we get started, I'd just like to point out that I'm well aware my standards are probably too high and my friends always take the piss out of me for it. There are almost certainly reasons for that that I won't go into, I don't want to bore gaf with my shit chat.
Honestly? Most of them. Although a lot of them it's not just their looks, plenty of them it's something in their profile or answered questions that puts me off. Some of them are not unattractive but either their opening message is crappy or there's something wrong with their profile/answered questions. I have a few deal breakers but I don't think any of them are too ridiculous - I don't want someone who has kids, or who is religious or who doesn't drink/smoke weed. Plus the obvious like thinking the earth is bigger than the sun and all that crap. But some of them are just plain unattractive (I had repulsive in there originally, but that sounds a bit harsh).
Out of the guys in my area that I've seen, maybe a handful of them are actually hot (like I'd check them out if I saw them on the street or whatever), the rest are either not unattractive (but maybe not my type or whatever) or...yeh. Man this makes me feel so shallow.
The only reason I'm still even on the site is because the first guy I met, I totally fell for. It didn't work out (mainly because I'm a fucktard) but I know it's possible to actually meet someone decent. So...yeh.