Churches tend to splinter. For whatever reason, some people in a congregation will decide this or that part is more valuable & should be of highest priority.
Then suddenly you have the Catholics who believe that you have to be a good person and be absolved of your sin by a priest. You have grace Christians who concentrate on the grace of God and His mercy and for these Christians there is no need of a priest or even to be a good person, if you truly believe that Jesus died for your sins the works will automatically fall in line by your love of God. You have the hellfire & brimstone baptists who preach fear of hell as their method of saving folks. The mormons believe that Joseph Smith dug up some stone tablets which is basically just a rewritten Bible, and they're nice enough at first...
Even among these large divisions there are smaller divisions. A church can believe in more evangelistic views than another of the same type just across town.
So who's right? Well, I'm of the mind that the closer you get to the original early church ideals of the apostles, the closer you are to the truth. But that gets tricky in itself because the early church believed in some miracluous things such as speaking in tongues, casting out demons, and healing just to name a few. And I don't believe that humanity has the capability for this anymore. We've lost something along the way during the 2000 since Christ died and I don't believe that these things have been done in more than 1200 years. Perhaps much longer than that.
But, I'm pretty sure you can throw out the Catholics and Jehovah's Witnesses. They concentrate on the Old Testament too much, works & just the name of Jehovah's Witness says it all; they're focused on the Old Testament and that was the Old Promise, the Old way, the Old Covenant. The New Covenant & Testament is that of Jesus Christ as Savior & Messiah. Mormons reduce the power of Christ's sacrifice in suggesting that once we accept the gift of eternal life we can give it back. First of all, who would ever do that? Maybe the anti-Christ, but that's all I can think of. Or perhaps someone without concern for their own pain making some statement in protest for something, just as people appear to be unafraid of prison in their protests. Inotherwords, almost no one would even want to do it, let alone be able to do so. Additionally, doesn't it remove the focus from Jesus Christ, who died on the cross 2000 years ago for the people then & the people of the future, and somehow we limit how much he can save us???? as if to make it more about us than His sacrifice???
So you can toss out quite a few religions, and then ultimately, you're left with just a few, and even these few are designed to cover a collective whole belief system. If you have a church of a thousand people, you can't expect them to cover every single verse and minor alternative belief. I know a pastor that just finished preaching Ephesians, this is a very tiny book, just several pages long, he preached Ephesians for 22 years.
And I'm not saying that I've got the best handle on the truth either. I'm very willing to admit that the mainstream religions I care for the most have gaping holes in their belief systems as well. Eventually, you have to test it out. Is it scriptually sound that a person could truly heal another person? Yes. Okay. Is it logically sound? No. Why? If it were true, it would be just like when Jesus healed people & the desperation was so great that some people would just try to touch his robe, or they might lower someone right through a hole in the roof or some other elaborate means, they might send runners to Jesus if their child got sick. Jesus was incredibly busy with the constant needs of the people. He was worn out from them at times and had to escape. If someone could heal people for real today, then a million people would show up with their aches and pains, it would be covered as a huge media event. So you can cut out all the healing churches. Faith does heal, but it's so random as to not be a sure thing. None of the forehead pushers are real.
So that's I go about it. Does God answer prayers? Yes, and most often the answer is no. I used to pray for winning lotto tickets. Yeah, like I needed that kind of money at 22. Like a bullet in the head. But does God answer petitioning prayers? Prayers from many people over long periods of time or just from yourself for a long time. Sometimes, yes. Is there any proof of this? No, not really, but there is an amazing amount of coincidence that builds up over time. My brother used to have to eat popcorn for dinner on Sundays. They were very poor. Just when things were at the bottom of the barrel and they had only some powdered milk and some condiments left, a check would arrive. This happened so often that it became uncanny. They would go through all the groceries until the day that there was nothing left, and another sponsorship check would arrive. They lived like this for years. Most of the time, it was like that. A lot of Christians have stories like this or more varied, but it's always the same, at first it seems coincidental, but it just keeps happening. It isn't the same checks, sometimes one will come from someone they hadn't had contact with for years. Then another check. Right on time. Right on God's time.
If a Church believes in speaking in tongues, I turn around and walk out. I have no patience for what I've found to be a lost art. If it were true, we could test it in some way. I think mostly these are people who are attention addicts. I've never been a part of a church that did this and found a benefit from it.
If a Church pounds you with the horrors of hell, I leave. The God of the Old Testament could be harsh, but He could also be forgiving.
Finally, I find something that makes sense. Even then there are things I disagree with. But sometimes, the pastor really appears to be talking directly to me. I've had sensations of the Holy Spirit and I'm not one of those that believe in the sensationalized versions of Christianity. I kept it to myself and my family. I always feel really good after & during church. It's like a happy drug with no side effects. And what's wrong with that?
So it takes awhile. It takes research. It takes common sense. It takes faith.