What is the strongest argument in favour of Hinduism?

The strongest argument in favour of Hinduism, in my opinion, is the concept of Karma and rebirth existing in Hinduism.

To understand more on this subject, please click:  “The concept of Karma & Rebirth in Hinduism“

I believe karma and rebirth theory is very elaborate, exhaustive, very logical and convincing in Hinduism.

How does it compare with after-death-theories offered by Christianity and Islam? This detailed comparison is available in my reply to the following Question:

If someone is kind, loving, considerate, compassionate, law abiding and just a good person all his life, but doesn’t believe in God, would he go to hell?