Build and features are different animals, with an Arctic Fox or its like you get better quality build with extreme weather capability vs same priced units with more glitz and features.
DRV , New Horizons, are 2 that do both, for $$$ to $$$$ Excel did a fine job of straddling the line with shortish 5ers with great build heavy load capability and harsh weather capability. Sigh, they are gone.
Be mindful of Mfgr. claims about tank capacities, insulation values, a wall or access door has only the R value of its thickness so claims of additional films etc. to add R value are gimmicks .
Shorter, heavy for length should get you a durable unit. The 'Lite' unit is not for durability. . Be certain the tires, axles exceed weight rating, that suspension springs and shackles are greasable.
Do not hesitate to demand name brand tires with ply rating higher than stock as a last bargaining issue.
Next to loose trim, $ to fix, tires and suspension are the most troublesome $$$ to fix.