I can't speak for the Rams, but I went with the vented Powerstop rotors and pads (supposedly carbon-fiber ceramic) on my Wrangler on all 4 wheels with the stock calipers. The whole kit shipped in a single box -- I think that the Amazon Prime delivery guy now hates me for having to carry all that to the porch.
IMO, the Powerstop pads have far superior stopping power to the OE pads and no fade at all that I've noticed. The Wrangler's OE brakes were mediocre, IMO. I think the OE brakes on the Rams are actually pretty good, although I am considering Powerstop pads and rotors (the Z36 kit) for my 2500 when it's time.
The Powerstop rotors (like quite a few aftermarket rotors) are also coated so they don't rust nearly as badly. I put them on last summer and ran them through a northeast snow and salted-roads winter -- so far no rust whatsoever on the non-contact surfaces. As far as the contact surfaces, well, rotors will flash rust in a day up here in the northeast -- it's to be expected.
As far as the calipers go, a judicious application of caliper grease and stainless brake hardware usually keeps the major rust at bay on my vehicles for quite a while. I also apply Fluid Film to the wheel hub before installing the rotors -- saves you from having to use the BFH to remove the rotors later on.
I can't speak for pad longevity yet as I only have about 6K miles on them (my Wrangler isn't my daily driver), but based on occasional visual inspection, they seem to be holding up just as well as the OE pads so far.
But that's just my 2 cents, FWIW.