8XL, Mamba Max or Quark 125 Pro and heat

I'm torn right now between the MM and an 8XL or going with a Novak HV system. The MM and 8XL seem to have the upper hand power and speed wise, but from everything I've read the NHV 6.5 is about as easy as it gets for brushless power, plug and play, runs cool, runs a long time on a charge, good power for a noob. The draw back being you give up a little of the 8XL top end, or at least that's my impression from doing a lot of reading. I'm really leaning toward the simplier solution and going with the Novak set-up. Another plus being the ability to use the pinion selection I have for my E-Maxx.