I have GY614 that are 5 years old.. Which would you choose? Goodyear Saliun Sampson Gladiator Goodyear's are roughly $1,700.00. All others between $1,000.00-1,200.00
IMO, any "all-steel" G-rated tire will serve you well.
Sailun tires have a heck of a good reputation (and following) here on rv.net. The fact they're also priced very low (typically $125-$150 a tire discounted online) is just icing on the cake.