Hong Kong Chinese/Tsinghua should be better than Antai.
You should also consider the Shenzhen class offered by CKGSB. CKGSB faculty is much better than that of Hong Kong Chinese/Tsinghua and have more powerful alumni
no need for GMAT. I am talking about the Finance MBA program and they make up their own exam. you can check with the admissions office regarding that. They also give full scholarship for qualified students