I'd go with Madonna... not so easily...
Yes, at those stages of their lives and "bodyhood", Madonna out-toughs and "out-dirty's" the heroine... but Wonder Woman, even powerless, is no slouch either and, after being on the receiving end of a few crotch, chest and clawing attacks (ect), the amazon would probably finally reply in same and thus would probably give the blonde decent run for her money... at least for a while.