Carrie made a good post about a religion that I can totally relate to. In fact, I'm surprised how many people find similar issues with religion.
I don't think very many people challenge their faith or ever make a conscious decision to choose it. I loosely believe in Christianity because it's what I was brought up on, not because I decided it was the "right" thing to believe. What I've learned about other religions is that most of them would likely suit me just as well.
The issue I have is the institutions built around religion. Most have injected so much human bullshit into them that they completely defeat the purpose of the basic belief system in place. What makes it worse is that some people who believe in the institutions more than the religion get so belligerent about why their religion is "right" that they take any dissent as an affront to "their" god. Those people are toxic.
At the end of the day, I choose to believe in a somewhat vague higher power because I think the universe is too amazing to be a sheer scientific accident. People in particular are too amazing, even though many can also be such assholes. You mileage may vary, but don't bother me with reasons that I'm wrong because I simply don't care.