The reality is that any of the name brand hitches will serve you well.
But with the short bed I would definitely consider a slider hitch. Many use a non slider with no problems. But there are also a number of posts here in the past of denting the cab or knocking out the back window on too tight of a back in turn. Good friend of mine knocked out his back window on such a turn. But after buying a newer 5er with contoured front cap and being more careful he did not do it again, even with keeping the non slider.
