I noticed something disturbingly familiar with a significant number of Marvel Superheroines.
I would like to call this the Marvel Sash.
http://mechanisticmoth.wordpress.com/2010/12/19/1000-things-we-hate-127-the-marvel-sash/  

Follow the link to see the discovery!
 
And please, if you find any other super heroines (or males too!) with this trend from any company, then let me know!