[spenner]

I personally have run a good range...
Really liked the Novak motors, used bonded and sintered versions and found them very good. Only down side was the sensor wire permanately attached. Orion, used it once and got rid... found it wasn't that quick and was very sharp on the brakes.
Speed Passion - used them for the last year and must say was the best i have ran untill this weekend....
Used the new Tekin sensored motors and wow!!! ran very cool, was super quick loads of punch. Not sure what they are like with other speed controls.

Yes i am a team driver for Tekin but i am well happy with the performance of the motor's.. hence changing from Speed Passion!!!

Couldn't tell you what the price differences are either.