One of the recent studies found overwhelming support of the "matching principle". Physically attractive dates were preferred by everyone, though people of less attractiveness tended to choose less attractive dates than highly attractive individuals.
Another study confirmed the hypotheses that people make unconscious dating choices partly based on the probability of rejection. Men asked to choose between different women, chose the most physically attractive girl from the pool more often, when assured they would not be rejected. Men, who rated themselves as highly attractive, perceived their chances greater than less attractive men.