How you decide which one is True God's Religion?

I have been confuse for many many years on the true God and his true religion. I was born Muslim so naturally, I thought Allah is the real god and Islam is the only true religion in the world. But then time arrived in my life when I decided to review all my beliefs and views about life on scientific bases...


That was big bang for my life....making story short....I am going to put some data here and want you to help me choose a real god and true religion out of the list i have found. Keep in mind that every religion is claiming to be true.........

The following is a list of some of the major religions of this World and each one’s estimated amount of followers.

Christianity - 2.1 billion,
Islam - 1.5 billion,
Atheist - 1.1 billion,
Hindu - 900 million,
Chinese Traditional/Folk - 394 million,
Buddhist - 376 million,
Primal-indigenous -300 million,
African Traditional -100 million,
Sikhism - 23 million,
Juche - 19 million,
Spiritism - 15 million,
Judaism - 14 million,
Baha’i - 7 million,
Jainism - 4.2 million,
Shinto - 2.7 - 119 million,
Cao Dai - 4 million,
Taoism - 2.7 million,
Zoroastrianism - 2.6 million,
Neo-Paganism -1 million,
Unitarian-Universalism - 800,000,
Rastafarianism - 600,000- million,
Scientology - 500,000

Can you help me find out the real religion without any prejudice, only on logical and rational bases?

Don't forget to tell, when you find the real god, because its really very lonely out there :)