GM has better truck engines (more powerful) but Ford drivetrains are often more durable. The rear GM 10-bolt used in half ton GM pick-ups is the subject of a lot of jokes among American off-roaders. They break with merely 33" tires while the Ford 8.8" has little problem with 35s. The tripod on the GM half-ton IFS CV joint is weak.

Phil spec Silverados aren't equipped with the Z71 Off-road package unlike their Phil spec Ford counterpart. The Off-road package for both Ford and GM include a gas shocks (Bilsteins for GM), stiffer suspension, skid-plating under the gas tank and transfer case. If you compare a Phil spec Silverado the a Phil spec F150, the Ford rides higher with its 32 inch tires versus 31s for the Silverado.

The Phil spec Ford F150 is also equipped with a limited-slip and skid-plates while the Phil Silverado isn't.

If the Phil Silverado were optioned similarly as its F150 counterpart then it would make a great truck.

The Z71 half-ton Silverado can be equipped with the following: Bilstein shocks, 265/75R16 (32") ATs, skid-plates, 5.3 liter 285hp V8, 4.10 gears and Eaton locker (yes, locker) all from the factory. Optioned this way, I may pick it over a comparable F150 but, sadly, GM Phil doesn't do it this way.