You do not need 10 reasons.
The overriding reason is that religion is a matter of faith. You can debate the pros and cons of any and all religions or religious sects and it comes down to the faith person has in his belief.
I am a Catholic. I use to be a Baptist My conversion was 24 years ago and I never regretted it. I was told in a Hub that I had condemned myself to eternal damnation by becoming a Catholic. My faith tells me I made the right choice and that I should pray that the person who thinks I am going to hell learns the true meaning of faith.