I don't think I can agree. Chun Li is a very memorable character and was on the scene before Cammy entered the Street Fighting world. She has the luxury of being on of the first girls in these games as the became hugely popular.
Thats true but her attire (with the acception of her boots and bracelets) are all generic Chinese fashion which has no personality outside of its culture its self, thats why Tenten is the worst Naruto character in the series (along with her tallent being useless in that show) Chun-li made her mark with her moves and her image breaking thighs of doom, Cammy was all around original (for that era).
Oh dont misunderstand me, Chun-li is a great character and far from a throw away character, I just dont think shes original enough to be SF's star lady, I think Cammy fits that better, but ya cant change fate, Chun-li will always follow Ryu & Ken into any franchise they cross over into.