I think it definitely can. I have heard both guys and girls say that getting to know somebody average-looking of the opposite sex and growing to love his/her personality made the person appear far more beautiful than at first glance. Your personality lights you up from within, where beauty is just on the outside. It may be more striking, but it fades and just isn't the same. Most guys would rather f*ck a gorgeous Megan Fox-like b*tch, but date the cute girl next door with a sweet personality. So would you rather be hot sex for a few nights, or a girlfriend?
Guys like "cute" girls-sweet, bubbly, outgoing, funny. Personality traits are always hard to describe for me, because everybody interacts so differently with each other.