Yes, girls that dress classy with a really good taste (good combination of clothes, light make-up, mild deodorant/perfume) tend to look (and smell ;) absolutely fabulous. Relatively few women (who try to dress classy) are able to achieve this though: either their hair doesn't match (especially to their face), or the overdo the make-up or the fragrance part. Many others overdo it by trying too hard to make look good/classy and thus make unhealthy (=grossly uncomfortable) compromises. This in turn takes a toll on their facial expression which makes the "big picture" look grim as well. So classy yeah, but it's important to exercise really good judgement and common sense about it ;)
I like a girl who's confident in her own skin but doesn't feel the need to show everything off. She knows how to leave stuff to the imagination. Someone who dresses classy by day and slutty by night just for me so it'll be our dirty secret that nobody else knows about ;)
There are some days where I love to show off what I have. And other days where I am elegant and classy. Long dresses... long skirts. It's all about versatility to me, and about wearing what makes you happy. Not what makes others feel that way.