A well-dressed woman is far more attractive!! A nice, enticing smile, and a willingness to show what might be under that dress, given the right situation, an elegant dinner, flirtatious conversation, a caring partner. . .
Well it depends, for a night out on the town guys would of course prefer a sexy dress while going to the beach or pool would be a bikini. But most guys would prefer a bikini because it shows off more of your body and curves etc. But thats not what its all about, because guys also love when you come to chill at their house of they go to yours and a girl is dressed in a hoodie and shorts or sweats and sweat shirt or such so you can just be comfortable with each other. (And also good idea to do your hair when you go to chill with you boyfriend so they dont get the wrong idea that you dont care)
Actually girls looks beauty directly proportional to good looking n more the dress covers them. Exception is burkha.. (what islam girls wear to cover them) You can't say about the girls inside burkha..