The reality of EMTB's is that all the motors do the job, and its actually the power delivery that seperates them in terms of riding experience - I still love the e8000 motor, even though it isn't the most powerful, because for me its the most natural to ride and replicates and reacts to rider imputes in the most similar way to ring a normal bike, at least for me and my riding. I have never ever thought I wish I had more power, in fact I would probably be happy with a bit less power if it meant a more efficient system.