KDs and CP3s are supposed to be built for more horizontal responsiveness, meaning they favor speed and cuts over vert. Never wore them though so can't really tell.
Also the Venomenon review said more or less that it is a cheaper ( and weaker ) Kobe edition, so i'd go with the originals.
About other low tops, i read awesome reviews about the UA bloodline, i currently use the UA Juke which is very similar, same foam ( MicroG ), low-cut but with an ankle sleeve embedded. I like them a lot but i dont love them, the hyperdunks and kobes are better, zoom is always ready to spring you up, not too dense, not too mushy, perfect.
2c