I have heard good things about Huawei, but have had no experience myself. I had a Oneplus 2 for about 8 months. It’s a good phone, especially for the price, but not in the same league as the Galaxy s7.
The good thing about the Oneplus 2 is that you can easily flash the International ROM (OxygenOS) on the Chinese version of the phone. This gives you a fairly stock android experience complete with Google apps.