Savage on 6s which motor, 10XL or KB45 8XL???

My setup is....

FLM extended 12-13lb Savage
zippy-R 4500 21c 6s lipo
Turnigy HV 100amp 2-12s lipo esc
cc ubec

Which motor do I want, a feigao like a 10XL or something or go with the big can KB45 8XL? Will there be a big power difference between these two motors, they both have very similar kv ratings. I leaning towards the feigao 10xl because the heatsink clamp that I already have will fit it and mainly because there are specs on it showing that its max amp draw is only 66 amps which is way below my esc's ratings.

I dont know if the kb45 8XL will draw too many amps and not have a reliable system. And they are priced about the same so I am kind of torn between the two at the moment, any help on picking the right motor will be greatly appreciated.

My number one priority is reliability, my last setup of cc phoniex 125 esc and 7Xl on 5s lipo cogged like crazy no matter what esc settings I used, I think the motor was just too hot especially considering the voltage being used on it.