why are all "Gods" in human form?

I could'nt speak of "any other gods" but as a Christian, I can talk about the God that I worshipped. As to you question, why are almost (in this case, this would be speaking with Jesus) that man has invented is in human form? Well, first, the Christian God revealed Himself to human in a form of burning bush, pillar of cloud, fire and thunder whereby the Jews have heard Him this was done because God as He is makes a distance from man, thus, man at that time has to offer burnt offerings for forgiveness of sins and be close to God. But then, God gave His only son, Jesus for the redemption of his people including the non Jews and get away with the offering of animals, and Jesus is the "perfect" offering for the forgiveness of sins of the people. The human form of Christ is specifically intended for the human race.