Depending what your doing with it, where I use mine I wouldnt have anything but a manual transmission. I hunt in pretty rugged mountians. I cant really say anything about the 3 choices you gave because I have never owned one. A friend of mine has a brute force and it seems to be a nice machine. I really like the looks of the grizzly though. I'd say all of them would make good ATVs if you kept them out of the deep mud and maintained them. Only ATV I will probably own is a Honda. Just because thats all I have ever owned and have never had to do anything to them. I currently have a 05 Foreman with over 6k miles on it and have never done anything but change the oil and a couple sets of tires.