the respectful and practical ones, of course. kamala's costume comes to mind, or spider-woman's latest one - functional, nice to look at, no hideous boob pockets. Really, it's like every female character in them comics has their clothes suction wrapped onto them.
most superheros have combat-heavy lives, so i like superheros who combat-style costumes. you know, like, military looking? i hate when the female characters are in catsuits for the same organisation (like shield) where the men are dressed like run of the mill military folk.
just like, design a costume for a male version of your character, then put it on your female character, and i prolly wont complain.
aesthetically, though, silk and spider-gwen are my favourites.