Both are good trucks.
Ford fans will tell you to pick the Ford. Chevy fans will tell you to pick the Chevy.
If the Ford was really superior to the Chevy, every one would buy the Ford and no one would buy the Chevy. Last time I looked, Chevy was still selling lots of trucks. If the Chevy was really superior to the Ford, everyone would buy the Chevy and no one would buy the Ford. Again, Ford sells lots of trucks.
Ford claims to be the best selling truck. However this fails to account that the Chevrolet and GMC trucks are nearly identical and built from the same parts on the same assembly lines. If you combine the Chevrolet and GMC sales the General Motors trucks outsell the Ford. It's all a numbers game.
Pick the one that you like best, not the one that a stranger on the Internet selects for you.