I'm a Michelin fan. Expensive, but a better value for the long run.
The F-450 has "real truck tires", which usually means you would use different tires on the steer and drive axles. The Michelin in size 225/70R19.5 for the drive axle is XDS2.
Michelin Americas Truck Tires XDS®2 Page
The Michelin doesn't make agressive tread tires for the steer axle. But their XRV is a good tire that will probably be what you want.
Michelin Americas Truck Tires XRV® Page
