I must admit that looks is important in a way. You must first have some chemistry with a person before anything can happen. What create this chemistry is different for different people. We are all different, thank goodness, else we would all be in love with the same person
To me a guy don't have to be pretty just pleasant looking, well groom, good hygiene and healthy weight.
I find overweight people unattractive. arrogant, cocky guys don't do much for me either. Baggy clothes and low waisted pants showing underwear shows immaturity. People with lots of hair on face and body. Needy clingy sleazy guys are big turn-off... The list is endless.. hey this is just me...