There are two common resistive throttles, Magura and Domino. The higher quality Domino has less rotation than the Magura. The Magura has about 75 degrees while the Domino has only 60 degrees of rotation. The smaller angle of rotation is said to be better ergonomically. I use both, and with a torque control throttle setup the Domino has plenty of control. With the larger rotation angle Magura you end up "crawling" up to get the right wrist angle.
The resistive throttles are fairly linear. The magnetic throttles, especially single magnet types, are often "nonlinear" due to the way they work. Two magnets can be used in the design to make them more linear, but most are made to be cheap rather than good.
If you haven't used a torque controlling throttle, arrange a test drive of a Zero electric motorcycle. Smooth control from walking speed to beyond freeway velocity.
Reference: https://evmc2.wordpress.com/2014/03/30/ ... vs-magura/