welcome, i'd assume that you're new to riding seein' as you're posting on the new riders section. If that's the case, i'd suggest against buyin' somethin' brand spankin' new, cuz there is a rlly good chance that you'd drop your bike.
there's a bunch of posts here that suggest what types of bikes to get. also, if you haven't done so, make sure you take the MSF course, as well as have extra money left for good gear and insurance.
now w/ that said, if you're still interested in getting one of the three you've mentioned, i'd say it really depends on which bike feels more comfortable for you and stick w/ that, don't worry about the power stats and all that, you shouldn't even be using all of the bike's full potential anyway.