Eage Cap 1200

In general, a truck with a TC has better towing capacity and 4wd over a Class C. Once you get into the Super C, you can have these items but they are typically a larger footprint and definitely more expensive than a Ram 5500 with an EC1200 (my example).

You also have the option to mix and match your upgrades verses buying a unit that is not so easily re-configurable. Many threads have argued the pros and cons in the past.