I drove a V-6 RAM 1500 crew recently as a rental while on business in northern Alberta. That is the one I would personally go for. It is a very competent car with AWD and lots of room. They are selling for something like $27k, which is dirt cheap for a vehicle of this size and capability. It will tow a boat and take the trash to the dump, too. I saw 9.0 L/100 km on the highway sections and about 12 in the city, not bad at all and I was not light on the accelerator.
I can't see any need for more power in this car. It is responsive and peppy and the eight speed transmission nice, although the selector screams "cheap-ola!" Of course it is Dodge and it will fall apart right after the warranty is up, but hey, it's only $27k. This diesel is $20k more and that can buy a lot of gas.