all yamaha
kodiak 450
3 grizzly 660's
rhino 660
and a grizzly 80 for my nephew

we put them to the test, take them to hel and back and the only thing we ever broke or had to replace was a few sparkplugs, headlight bulbs and and some plastic trim pieces i tore off.

the rhino is by far the best machine made for us. the gorund clearance and power with 4x4 is better then the golf cart style others make. it will go up steeper hills than the smaller grizzly and kodiaks, and we've had 5 deer and 1 man in bed with 2 guys riding up front and it still powers down the trails with ease.