As I just mentioned in another thread, I love girls to be dressed in whatever they wear in their normal lives when I meet them. Not sure why, I guess it's the whole "girl next door" fantasy. But I certainly love the physical act of slowly undressing a girl, regardless of what she's wearing.
It's always a bit of a disappointment for me when they're already half-naked when I turn up, although god knows why - it's not like I can resist long before stripping them off anyway.