i personally prefer going out on the weekdays as you get much better attention from the girls cuase there are fewer guys around. so many stunners how wouldn't be available and the weekends when you have some big spenders around all a sudden are available on the weekdays!
I've always felt the same way; Fri & Sat was for partying with the boys -- if I wound up w/ a girl (usually did), great -- but it was not the first priority to find one.