Out of that group i'd go Zone in a heart beat, they are owned by the same parent company of BDS which is one of the best. BDS, RE Extreme, and OME are tops in my book. I'm running the RE extreme 4.5 turning 35" Goodyear MTR Kevelar.
Diff= differential. Personally I would not lock a D35, it may not last long with 33's in mud.