Dan Petersen has an excellent implied rebuttal of the argument that Mormons follow a different Jesus.

When folks make that argument, the kind and Christian tack is to explain that differing metaphysical beliefs about a person do not change the identity of the person. My atheist friends know a whole bunch of soulless meatbags and no sons of Gods. I know a whole bunch of the latter, and I wouldn’t know any of the former if I weren’t a lawyer. Yet I and the atheists manage to have lots of acquaintances in common. Do my atheist friends believe in a different Dave than I do?

The unkind and unchristian tack is to look at the person kind of funny, and then in slow and deliberate tones quote Twain: “I don’t believe Homer wrote the Odyssey. It was another blind, Greek poet of the same name.” Use your sneer, if you’ve got one.

I leave it as an exercise to the reader to determine which tack the Junior Ganymede recommends.