Grand Cherokee or Ram 1500 for a 2.2 tonne caravan?

We’re looking at a caravan around 2.2 tonnes loaded for weekends up the coast, and I’m trying to work out how sensible a used Grand Cherokee diesel would be compared with a Ram 1500. I don’t need a massive tow rig the rest of the week, but I also don’t want something that feels unhappy on hills or gets expensive every time it needs a service. Which would you pick for this sort of towing?