Comparing Brands

We are down to the final three selection. Comparing brands, Freedom Express, Starcraft and Rockwood. The quality on the Freedom Express and Rockwood seem better than Starcraft. Does anyone have experience with these brands?

Must haves in construction are vacuum laminated aluminum framed walls, DH likes the Azdel product. Also want the enclosed underbelly. I like the tub/shower better in the Starcraft and the Rockwood bathroom is great. Freedom Express gets the poorest mark on their shower of the three.

Thanks.