Class A's, though larger are ,as pointed out in earlier replies, are easier to handle(especially in high winds). May be more expensive, but unless you put on more than 20,000 miles per year, change your oil once a year. Tires typically last a lot longer. If you've read any of hte other threads on tires. Most still have original tires after 10 years. Replacing those tire isn't cheap, but for the longevity of the tires it seems worth it. With the aftermarket warrenties, it's possible to own an older coach with not a lot of worry of breakdown. Once you've ridden or driven both, you'll see that an A DP is a nicer ride to have.
2013 Entegra 44DLQ Ebony Blaze
2014 Ram 1500 Laramie Longhorn Limited Toad