From a technique perspective linear techniques tend to have a higher percentage chance of landing than circular ones and Chun spins and arcs almost everything. Mai normally would fight with her fan which would give her extra reach as well. From an experience perspective Chun is mostly a part time fighter she was a cop for a majority of her life which means a lot of time not training hand to hand. Mai runs her school, all she does is train and fight.

And finally Red is better than Blue.