Now that that's over I'll try to answer your question - I don't think there is a single website that will compare the manufacturers any better than this one will. Just read this board, look through all of the older posts and you'll get a feel for the experiences of the people who have gotten the factory tours and how each rig is built.
I like the escapees site for overall RV information as well. Used them a lot when I first got into this with a gooseneck race trailer that had living quarters in it.
Good luck over there come home safe and once you do get a rig you'll absolutely love it. Just driving one compared to the marshmallow feel of a regular Class A or C is amazing, the towing ability is unreal, and the style points - well those are a given