quark or mamba maxx for e-revo

i read all the posts on how great the mamba max but is it a better choice over the quark monster pro for an e revo on 4s or 6s? i'm planning on getting one of the neu 1515 motors as everyone raves about them... although i'm a big fan of pletty's from my experience with the extrem/mtronics pro combo in touring cars and offroad 1/10 4wd electrics... i've always wanted to get a big maxximum but it seems like everyone has moved the neu motors... why?

i guess i'm really asking two questions quark/mamba, neu/pletty maybe lehnr