Savox 1251
Used this in 10th scale 2wd and 4wd and in a pinch, my SC. Just like the Futaba 9550, same specs, half the cost, same performance. HAs never let me down. Only down fall is the mile long servo lead.
Savox 1257
great throttle servo in an 8th scale, have also used in 10th scale for steering. ULTRA fast.
Savox 1258
By far the most versitile. Am using this as a throttle servo in my truggy, Steering in my E-Buggy. Works great in ANY setting. Plenty fast, and i believe under rated on the torque. HAve yet to see one fail.
Savox 1267
I use this for steering on my truggy and my nitro buggy with a LiFe pack. Perfect specs for both, plenty fast, great torque. Never had any problems.

The ONLY downfall I have seen with these servos-the MILE long servo leads. Also the labels seem to come off very easily.