I’m going treat this like a philosophical question. Hopefully it will be a sufficient answer.
I’m not Hindu, and I’ve always been more interested in Shinto and Greek paganism as far as non-Christian religion and mythology are concerned. That being said, I’m aware that Krishna did not sacrifice his life for humanity. That, to me, is by far the most compelling evidence against.
Jesus’s Passion and sacrifice for us is not just referenced a few times in the Bible or in a few ancient texts, for that matter. Many many Saints, Blesseds, Servants of God, and just laypeople who had experiences with Jesus attest to His ongoing unconditional love for us, to the extent that multiple sources - Gabrielle Bossis, He and I is the only one I can think of right now, but there are several that I’ve read - state that Jesus loves all of us, both individually and as a whole, that He would gladly suffer His Passion again even if just to save a single soul. There is no other religion that so emphasizes a sense of unconditional love, especially not such a great love from the Creator of the universe itself. Also pertinent is our belief in the Eucharist, wherein the Creator of all things humbles Himself to be spiritually and physically present in the host, literally providing us nourishment through Himself.
Polytheistic pagan religions often have a pantheon, with these pantheons generally having a god that serves as leader, the highest deity in their religion, which is generally their interpretation of the creator. Zeus (or Chronos), Amaterasu, Vishnu, Odin, and so on. From such religions’ perspectives, the Judeo-Christian God is the Creator deity and thus the most powerful in our “pantheon,” though obviously monotheistic religions don’t have pantheons. With that thought in mind, present on every altar during mass, even right now, and in the tabernacle of every Catholic church in the world is the Creator of all things. Not just represented by a statue like Zeus, but actually present, in every Catholic church. This is one of the reasons why Eucharistic adoration is so very important and special, and why abuses of the Eucharist are so appalling and painful for Catholics. Priests, monks, nuns, laypeople throughout history have actually risked their lives to preserve the Eucharist in tabernacles of churches that came under attack or natural disaster or persecution even today.
I have also never encountered another religion, even Judaism or Islam, who put such a great deal of emphasis on God’s intimately personal relationship with me. It is not just a scenario in which God loves humans as a whole, or His Saints, or just his Priests, but rather one where God specifically loves me, in spite of all my flaws and failings. I could expand on this idea, but I’ll leave the response here for now.