Working with both
The Visoneers (73) and
G.R.R. (340) this year in the same house allowed me to see two styles of six wheel drive. The Visoneers went with traction wheels in the middle with omnis on all fours corners. They had awesome maneuverability. G.R.R. went with six traction wheels with a lowered centered wheel. That gave them awesome traction. To answer the question which style is better depends on what you want to achieve.