I've always found Bigfoot, Lance, Northern Lite, etc. type campers with the rear overhangs, to be more spacious. But it's a useless waste of space and weight. If I want to stretch out, I can do that outside. That's the point of camping. The camper is just sleep and shower to me. Bit of a bummer that more zero overhang models aren't out there.
It's all fun and games until you get a couple of days of constant rain, then the ability to stretch out somewhere other than the cabover is nice.