Who is better, Tibetan Mastiff or Pitbull?

It’s just a big stupid dog. It’s only valuable as the dog dealers hype it. It’s okay to fight ordinary dogs, but not those well-known fighting dogs. Needless to say, bits, Tibetan mastiffs are no match at all. The Caucasus can instantly kill Tibetan mastiffs with the same size. Big, there is a video of the Tibetan Mastiff who made the first move but was killed by the Caucasus in less than a minute. The video can be found on Baidu. Not to mention the wolf, it is all boastful. Has anyone seen a Tibetan Mastiff bite a wolf to death with his own eyes? I have often seen the news about wolves biting Tibetan mastiffs to death. Wild beasts are wild beasts, not dogs guarding homes and courtyards.