As a B owner, I'd suggest you check out the class B Forum to help you make a decision. Some of the advantages are that almost the entire length is living/storage space, they are as fully equipped as a class A, but on a smaller scale, and you don't need to go outside in the rain to reach the living area. The front seats do swivel, giving you even more room, and you can use it as a daily driver. With a TC, I would imagine an awning would be an afterthought. Of course, you can't haul firewood in the pickup bed. You can see my idea of a perfect vehicle in my profile. It may be old, but is reliable, and one tough vehicle.
