JMO but I'd go Lance for two reasons. 1st is the greater holding tank capacities. 2nd is the use of Azdel. No chance of delam. Another would be the torsion suspension on the Lance would technically give a smoother tow. Lance is made in CA, which could be helpful if you need factory assistance. After that I don't see a lot of difference. Lance does use a better cabinet assembly process, which could be an asset in the long term.
I don't like the tv placement in the Lance, although you get a sofa in the Lance. I know from personal experience that the booth seating in the Lance was pretty comfortable. I would sit in the booth in the Bullitt for 30 mins and see where you end up. Sometimes you end up on the plywood seat support. Lance seems to have firmer cushions. I've never found a booth seat that would be comfortable long enough to watch a movie or game. However in the Bullitt you could just lay on the bed. Tough call. But for me the Lance has a few more construction qualities that make it better.