ESC Question

[BL_RV0]

Which would be better to use an a Reggy (revo electric truggy) which is about 8.5 lbs with batteries installed. batteries are 2 2s 3800 limn packs in series. motor will be a lehner basic 2400xl. i use it because it pulls 55a amps only and is super light (i need it light because the motor will be mounted above the center diff, because of the dual batt packs, and trying to get even weight distribution.)
the contestants are:
kontronik jazz 55-6-18
quark 65a
mgm 6012
mgm 8016
bk 9920

who wins? im looking for smoothness, no cogging, and service, and which will puff the least, and have the least heat issues. what do you guys think?