Several of the NFL’s established defensive linemen agree that Mahomes is a tougher opponent than Brady. They point out his unbelievable mobility combined with the threat of his arm. Most quarterbacks possess one dominant attribute but Mahomes has both of them. That’s another reason why he is better than Brady (via The Star).
The Panthers’ Efe Obada said: “For me personally, it’s definitely harder to play against a mobile quarterback because once they’re able to expand plays and then got explosive receivers, that can be dangerous. Mahomes has an arm that can get it deep while on the run.” Brady offered a different type of threat and nous but Mahomes is a better athlete.