Which servo for my Xray Xb808 steering? Savox/Futaba/Sanwa. Which is better and model of servo?

its all preference, everyone will give you a different answer. i wouldnt trade my Futaba servos for anything else (S9157 for steering and BLS351 for throttle) and ive ran savox, airtronics, JR and Hitec in the past and i like futaba the best by far, hitec is the only servo i would buy again.