I prefer without, by far, or only minimal makeup. Kissing a girl that has a lot of makeup on is disgusting, not to mention, too much makeup makes you look like a bad cleb. If you don't have a boyfriend, most likely it is for other reasons. You'd do better to explain some of the areas you think you can work on besides looks. Most girls (not counting disfigured ones) have enough in the looks department to attract at least a few guys. Perhaps you are shy or need to expand your social circle? What areas besides looks do you think you could work on?
Generally, Guys do appreciate the look of make-up. However us guys do appreciate the person wearing the make-up more. If you don't want to put on make up - it's fine! If you do want to put on makeup, you can too! just don't over do it.
Personally, I like girls with some (not too much) make up because it complements a girl.
I prefer when there is not to much male up. The less there is the best it is for me. I really appreciate some make up around the eyes, I'm f***ing fascinated by that. (last night a women on a motorcycle was stop at the trafic lights, she looked at me above her helmet, I saw just jer eyes. They were just beautiful. The funniest thing is that she kept looking at me.. but hum that's not the point here)
I repeat : Not too much make up but a bit could be cool and give.. "something more".
I think just wearing the right amount accentuates your natural beauty but also shows that you care how you look. Too much and yeah you just seem like a clown. But my boyfriend ALWAYS says he likes me best natural and a lot of the time during extended stays at his place I don't wear any, but then I'll do my makeup and he'll be like "wow you look really good tonight". I don't think they really notice and they appreciate the 'right amount' but they just say they like you natural because of females who wear too much and give it a bad name so to speak.