I've got the new Yamaha 700 FI, couldn't be happier with it. I'm totally amazed at where this machine will take me. The power steering really makes riding easier. I'm not sure what the weight difference is between the big bores and the smaller ccs, but I would toally recommend the Yamaha. Whatever you pick, make sure to get a 4wd low gear and diff locks, it makes all the difference in the world. I have a winch as well but have never needed it. Definitely go for the thumb warmers, (sure would have liked them last season).