Atheism

[Angrboda]

Aside from your claim that Christians 'really' encounter the Holy Spirit (as opposed to interpreting their experiences through a NT lens), I don't see where you provided Simon Moon's friend any reason to doubt his experience of Krishna or whatever. "You don't need to meditate or perform any particular discipline (or concern yourself with strict observance of the Law, in Paul's view)" is a good marketing gimmick, but it makes for a lousy measure if we're concerned about the truth or falsehood of one's interpretation of experience.

The doubt of Simon's friend should arise from the overall worldview. 

1. Is Hinduism theology internally consistent?
2. Does it have a coherent understanding of reality?
3. Is there some sort of body of natural theology that support the tenent of the faith?
4. Are the facts of Krishna's life believable (as a god)? (demons, killing, war, wives, children, died of an arrow wound)

In ALL cases, religion has to be a cumulative case.

Your arguments against other religions all seem to revolve around criteria that are favorable to your religion, and seem -- at least superficially -- hostile to theirs. If that's the case, as I think it is, that's simply another version of special pleading. I don't offhand know what the proper evaluation of a religion or its claims should be, aside from an obvious correspondence to the real world, but your criteria seem unnecessarily biased.