[nl12]

First decision to be made is motor brakes or mechanical brakes, then you can narrow down your avalable controlers, then decide what batterys you are going to use (I think this is the most important decision) then based on battery selection you can further narrow your controler options, then you are left with a motor choice. I would choose between the big Neu, Lehner 30 series, and possibly the Bolido. I would use no less than 10s lipo.