I've always thought conservative clothes looks much more attractive than slutwear. Half the time I see a belly or thong it's usually on the wrong women anyway.
On a related note, when you actually DO look at women's slutwear, you're considered a pervert by other females. Yet, these are the same females wearing slutwear themselves! I can't walk down the U of C hallway without noticing some skin on a woman at some point during my walk, of which my female companions accuse me being dirty! For crying out loud! There is no positive way out of this situation, so I implore women to dress more conservatively. Not because it looks bad on them, but rather it looks bad on poor fellows like myself when we can't really help it.