Hi Tim and Cathy,
Within the Landmark line, you'll find the design and production to be similar. The primary difference is going to be floor plans.
Then within the floor plans, you find various lengths and weights of trailers. One of them with 4 slides that allow the end room to be closed off from the rest of the trailer.
The best unit for you will be the floor plan that best suits your lifestyle. For us, it was the Mt. Rushmore with the freestanding island.
I believe that the Golden Gate is the Landmark that has sold the most units.
Having been in all the floor plans and in many owner's units, I have to say that from an aesthetics perspective, I really like the look of a Grand Canyon with leather chairs and granite counters.
So many choices! If you need more counter space for food preparation, consider the Grand Canyon or Mt. Rushmore.
Note too that the image below and my comments above all pertain to the original Landmark platform. The redesigned Landmark will have new floor plans. It's not clear to me if the original floor plans will also remain available but many of them can still be found on some dealer lots.
If you like the side aisle plan, one of the new floor plans may interest you. I don't see the new floor plans on the factory website yet but I'd expect to see them soon.
Other's will weigh in on this thread with their ideas for you as well as their preferences. Try to get out there and see some Landmarks!
Jim
//heartlandowners.org/attachments/landmarks_original.jpg