I wasn't sure about the new bar either until I got mine. I didn't realize that the new one had came out already when I ordered mine. In my opinion the new bar looks better and provides more armor.
I have heard some people say the old one provides more protection but it just looks that way because the bumper is smaller and the tubes are longer on top of it. The new bumper comes up just as high on the hood and also comes with 3 holes so if you are running body lifts you can adjust it up to any height you wish. It may stick out more than the old one but I don't think it would cause a clearance issue when climbing a steep hill.