They are pretty close to the same, but the Brison 3.2 has a mid range most G-62 owners would kill for. The G-62 has just very slightly more overall power, but with a weight penalty and the lack of a solid mid range makes hovering somewhat more difficult.

RCIGN-1 could set you up with a G-62 that would blow our doors off, but I don't know what the cost would be.