Wonder Woman is a weird character with a weird origin story and weird powers. She worked in a cheesier time, but for her to work now, I think her backstory would have to seriously be re-designed. Daughter of the Gods? Invisible plane? Magic lasso that makes you tell the truth? Just too goofy. I can barely suspend my disbelief when she pops up in cartoons anymore.
I guess the counter-argument would be Thor.