The jcube sofa in the bunkhouse in the Jayco seems way more practical than the dinette in the KZ. The extra cabinet over the main sofa seems like a big win for the Jayco as well. If you do any boondocking the extra big tanks on the Jayco are another plus, likewise if you have anyone tall the 3" of extra headroom is nice. The big question is do you have enough truck to pull 12-1,300 pounds of tongue weight?
2019 Dutchman Kodiak 293RLSL
2015 GMC 1500 Sierra 4x4 5.3 3.42 full bed
Equalizer 10k WDH