I totally agree with you.
I just think that as stand alone character, WW is more popular.
Storm benefitted from Claremont's initial run on the X-books. One of his trademarks has always been strong, powerful women, which seems to make them all the more popular. To me, Wonder Woman is a pillar of DC continuity, but in the 90's, she frankly wasn't that interesting. Remember, this is the time frame where they actually REPLACED her with another Amazon.
That is true. It's always made me wonder why DC treats WW so crappy.