At 1050, Chun-Li actually has above average stun.
His argument that her overhead is too easy to use for mixups can be countered with the fact that he can use command grabs in the same manner. Also, I don’t see why her overhead is particularly easier to mix up with than any other characters overhead. The whole “advanced game mechanics” argument is retarded too. Chun-Li does rely on fundamentals pretty heavily, but fundamentals are harder to master than any FADC combo. I could dp FADC ultra with Ryu well before I could competently space, zone, poke, anti air, and rush down in the appropriate situations. As for easy combos, sit him down and have him demonstrate a legs loop combo. She is not even close to being the only character in the game that can get into an ultra with one meter, or AA into ultra with no meter. That ultra has garbage damage anyways. Also, kindly remind him that he uses Abel (cr.fierce into ultra 1 for no meter) and Makoto (command grab into ultra 1 for no meter).
I do agree that Chun-Li has 2 good ultras, but that is not exclusive to her. In fact, Makoto and Abel both have two excellent ultras, along with Dudley, Adon, Rufus, Sagat and more. So that argument doesn’t hold water. Chun-Li is for sure a strong character, but she is far from the strongest now in AE, and requires a lot of work to be good with. She doesn’t have an auto pilot mode either. She has the tools to adapt to any situation, but it is up to the player to know her well enough to do so and then execute properly.
It sounds like your friends are just hating for the sake of hating. They would rather blame their losses on your character choice instead of the fact that you play better than they do. I’m lucky that I play in a circle that doesn’t have this kind of hate. We all respect each others character choices and do everything we can to help each other level up.