I like some of those redesigns, especially the Buffalo Bills. The Skins one is pretty cool too. I like that it incorporates the two stripe pants that we currently use, but has the 1960's throwback feel to it at the same time.
I'm not 100% sold on the "Spear" helmet...my preference would be a Burgundy "R" helmet, with a single Gold stripe down the middle, and a Grey Facemask (Basically same as the Gold Lombardi helmet but burgundy).
I also like the idea of Burgundy Pants / Gold Jersey as an alternate home. Something like this: