I'm not an advocate for any one mfg. But from a customer service stand point, I would like to say that I tore up a Hitech 5955mg and a JR 8711 in my E-Maxx in quick succession.
I sent them both back to their respective repair centers on the same day. About a week later I received the JR servo repaired no questions asked. On the same day in the mail I received a note from Hitech saying that my servo had been received and would be repaired and shipped back to me in about 2 weeks.
After about 2 weeks I received my Hitech servo in the mail repaired no questions asked.
So the moral of this story is: Choose which ever servo you like because you can probably get good CS out of any of them. JR may have been faster but both companies did a repair job on something that was probably my fault anyway.
As always YMMV.