While there are other trailers that are made in the same good fashion as Jayco, there are a lot that are made inferior. Just look at the type of woods used and construction. Also if you must go with a laminate build, stay away from laminated floors and roofs as they are more prone to failure from lack of structure.
Go with screwed vs staples and go with plywood vs structure/particle board.
You'll also want a crowned roof, stay away from flat roofs.
Jayco's stick and tin trailers are second to none.
I do not like their ultralight laminated trailers or any laminated trailers as they are more prone to problems with delamination even if exotic backers are used instead of luan.
The Glue can break down when the exterior skin is heated by the sun on hot days or cold from the outside conducting through the aluminum metal framing, causing 'trapped' condensation in the laminate to break down the glue. Not all delamination is from leaking seals or caulking.
If you must go with laminate, make sure there's some barrier to block the outside cold from conducting into the framing. Make sure the aluminum framing has a wood core for cabinet fastening. Make sure you get several years of delamination warranty. Make sure the type of glue they use will not break down from heat or condensation. Make sure that there is adequate studs as many laminate trailers have few internal cross members other than for window and door supports. This is especially important in the flooring but as I said I'd avoid laminated flooring like the plaque. If you must get a laminated roof, MAKE sure it's CROWNED.
After owning campers made by makers that won't back their product, I found Jayco head and shoulders above the rest. They bend over backwards to make you happy.
To be honest, after how great they've treated me, I don't know if I'd want to trust another makers. I stay with makers that treat me good and offer an excellent product.
BTW, Jayco is GREEN. They even have the Green label!
Also I originally had a bad dealer that caused so much more additional damage while trying to fix minor things. Jayco made everything right at their factory. Not many makers will go to bat for you when you get a bad dealer. You won't know a bad dealer until you need warranty work. ;)
My current dealer is EXCELLENT as I tried them previously before I bought from them.