Having owned both brand, hands down, buy the Jayco. The Keystone warranty is 1-year... Assuming you can get service (probably only at your purchasing dealer). Our minimum time to repair is 30-day.
Keystone puts a wall called the "dealer" between you and actual product support. If the dealer fails to repair or does a bad job, you're stuck with the dealer to resolve it.
Jayco - direct support and parts if you need it.
I'd pay 50% more for the Jayco. Literally. Better hurry though, Thor just bought Jayco. They also own Keystone.
