The title for this topic, "Churches - which ones are going to hell", is not about buildings or structures, not even about organizations: churches don't go anywhere, people do. Churches, however, are a collective term for the people who embrace them. So the title is abstract. This discussion is not. It's about people.
I have not been a Christian for a long period of time, but I've been alive for nearly fifty years. Like you, I've seen the bad stuff, from violence to the more subtle forms of death...such as lies and cheats, etc. I only mention the age-thing because I'm more qualified to give my own human insight into churches, than I am qualified as a Christian to speak on the subject. However, it was as a human that I was called to Almighty God. I did not become Christian, then human. And as this might seem a worthless point, I submit that it is the heart of every call to Christ...that we, seeing our own infirmities and those around us, have it already in our hearts to want what is better and more meaningful. The difference between those that answer the call, and those who do not, is not whether or not the desire is there...it's whether it is more meaningful than the other desires they harbor, also. You can, as a Christian, make the mistake of leaning toward desires that are false in their value, just as you can run toward the desires that lead to the treasures of God.
That's why I chose the title. Churches have, in their collection of people, a wealth of desires of every shape and form. The people hold love, hate, fear, anger, empathy, and you name it. They've got it. Churches do not differ from one another in that way. And, as well, they all hold this: individuals who will lean toward false treasures, and individuals who will run toward God's treasures. To apply any label on a Church, is by assignment of that label, assignment to all it's people...and it is presumptuous as well. It presumes that God does not see the human heart or the Christian soul. In fact, to presume is an act of inserting our own eyes over the eyes of God. We say, in affect, that we know more that God Almighty, and in so doing, make fools out of ourselves.
If churches were the center of the Christianity, Christ would not have come to shed his blood for individuals. He would have hung on the cross and said, "I shed my blood for the Baptist Church, the Catholic Church..." or whatever church of the day. But he didn't do that. The point of the crucifixion was toward humans, like the criminal on the cross beside Christ.