Your best bet is the 2200. Less amp draw but will stay cooler in comparison to the 2650 when geared for the same speed.
and the 2200 allows you to run 6s lipo (which makes everything uncalled for powerful) and gearing down and volting up give you a setup with higher efficiency- higher efficiency gets you less heat on your components, slightly lower amp draw and gratuitous amounts of torque. what more can you ask for
