I would also way out which dealer you like the best over brand. Most likely you will be needing work done and i would rather buy my 2nd favorite model and have awesome customer service then buy my first favorite and fight every step when you need work done.
I really liked the GD when i looked at them and they had pretty decent reviews. I didn't care for the lack of storage under the front along with the slides in the living room being hydraulic and when opening you couldn't select which slide. They opened simultaneously. They might of changed this around though.