I like to ride 20" because they are easier to fronthop and they control better but i also like to ride 26"ers because they are good for getting up things and i prefer doing drops on them because i feel safer.
Nice bikes i know someone who has cracked the frame on thier onza t-pro 2006 the crack is about 2 inches long unluckinly for him it was after christmas so he has to buy a new frame