Honda or yamaha! in that order!

Honda foremans are the most bullet proof toughest atv's you can buy PERIOD!

I have a kawasaki 300 bayou 4x4 that i have had for about 12 years it has never been as dependable as the honda.

I also would recommend highlifter or atv nation for some added research. i will bet you will find the honda is dominate on both.