I've always found Catlin Fairchild of Gen 13 to be the most attractive, hottest Comic character.
All the attributes come together to something I find so appealing. A nerdy mousy girl transformed into an amazon warrior. Totally unaware of how hot she is, unknowingly taunting everyone around her with her revealing costume. Also her invulnerability is the perfect setup for constant wardrobe malfunctions. Gen 13 was a rad title just for the fun exposures Catlin always went through. I wish there was more of Fairchild!
A few years ago DC comics brought Fairchild into the new 52 universe, but since it's no longer the 90's and everyone is afraid of being called sexist, she never really showed much skin. I think this pick is as close as it ever got to an ENF moment.
So, anyone else have a favorite Super Heroine? My choice was based on sex appeal, not really considering actual character and story. But any character anyone feels is worth mentioning.