Chun Li is the true female icon of the fighting genre, as she was the only woman featured as one of Street Fighter II's original eight World Warriors, and has remained a popular choice in each of the SF sequels since then.
Unfortunately that fact doesn't translate into her being a Contest powerhouse. Actually Chunner's final x-stat position was right in the middle of the pack in both 2005 and 2006, but you have to chalk most of that up to Bowser massively over-performing on Snake the first year and Zelda rSFFing (or something) Samus during the second. To be fair Chun Li has never had a bad match, though managing only 40% on Yuna in '06 certainly wasn't anything to write home about.