I looked at both of them years ago when I bought my Host. My observation at the time was that the Lance's had very dark interiors with more closed floor plan designs and more cabinet space. Eagle Caps were a little lighter and not as well finished. Since that time, I've noticed based on posts here, that build quality varies a lot in the same manufacturer due to the nature of how they are built one at a time.
I think Lance has a similar end cap now, so I don't think that matters. If you want to consider other possibly lighter models, look at Host as well. Which ever one you buy, do a good delivery checklist of the actual unit you buy.