I am a male chauvinist, I guess, from my childhood. I don't deny it but I am not proud of it either. So, all my theories revolve around the concept of male species being dominant over the other. My recent theory regarding Hell and Heaven is also a similar story.
I believe in Nature. I also believe that, she takes care of balancing everything; Seasons, predator-prey life cycles, and Gender ratio. By now, you must have understood why there are girls in heaven in the form of ANGELs. If not, let me tell you why. Because, all men from earth go to heaven, she needs to take care of the Gender ratio in heaven. In similar lines, Hell is full of male devils. And again, you may ask me -- why should there be ANGELs in heaven rather than normal girls? Oh c'mon -- this is pretty simple again and it also is a balancing act of Nature. She wants us to experience the side of the female gender, (gentle, caring, beautiful, cheerful), which we(male humans) wouldn't have seen in Earth! And similarly, she created devils with characteristics that are not found in male gender living in Earth!
:)
