MKS Servos: HV777
The MKS HV777 was the first MKS servo that I tried, and I have never looked back since.
MKS already known in other flying circles, such as helicopters and gliders, they have done an amazing job now on their plane series too.
The HV777 has 38kg torque at a speed of 0.10s, more than enough for mostly any application. Add this to their amazing precision and centring and you can see why I like them.
Having been flying with the same set for years now, I can truly say that they are one of if not the strongest servos I have tried, as prior to these I was breaking gears and cases on any other servo I tested.