Steve,
Your question has as many or more answers as there are shock manufacturers. The OEM shock on most all Beaver coaches was Bilstein. If you just have a shock that has failed (leaking), and you want to restore the original ride, you probably want Bilstein. However, if you have not had a failure, but you are having a ride issue like porpoising and you want more ride control than the OEM shocks can provide, you probably want the more expensive Koni shocks that provide the higher ride.
One point to consider when replacing shocks on a 1996 Patriot. Since this was the very first Magnum chassis ever built, some of the shock mounts were prone to failure (breaking) and had to be strengthened, so check your shock mounts carefully for cracks, especially if installing Koni shocks.
Gerald