Unless your doing excessive hauling or have a good sized ranch operation,etc I think anything over 500 is not required. I would look to the 350-500 for hunting/general purposes use and it should be more than enough speed and power for you. Personally I think Honda make the best ATV but I don't like the fact they have done away (on some models) with the pull start. It maybe moot to you, but I can't tell you how many times a battery has failed, lights left on by mistake or froze that electric start was not an option...to me it is essential it must have a way to start other than via battery/key. I haven't looked at new ones so for all I know this maybe the trend for a lot of models now!

I currently have 2; a Polaris Sportsman 400 and Honda Foreman 400, both have been good but the foreman has cost less to run, is better on fuel and IMO a better bike from my usage point.