[greencactus3]

im not sure what team it was, but i think it was a team with treads and a wood frame used 2 cims on one side, and 2 drills on the other side of their robot. as 4motor drive, with a nonsymmetrical (or not even close) drivetrain. did i make sense? well if sumone knows more, they can clarify. well anyways. this team has experience using a twin CIM gearbox. probably one of the only if not the only team which has used a gearbox with 2 cims together.

edit* and also what do you mean by 'best'? if designed correctly 3 motors will definitly have an advantage in power or speed or even both, but as weight, space, need of motors for other components of the robot, and battery juice, every robot will be different in what combination or single will be 'best'