I had a converted 3.3 Revo running a 1515/2.5d w/ 6s and I didnt care for the weight distrubution. It was heavy on the battery side, it was ok for doing straight speed runs, but was clumsy in handling. My 10s converted Revo has a set of Emaxx battery holders I have mounted on a 3.3 chassis with a 5s pack in each(the width was good just a little long, so I cut the rear end off) It uses a slipperential instead of a tranny, the COG is lower than a normal converted Revo and closer to a ERevo.

My vote would be for the E Revo