I find there's too much hypocrisy and "bad" in religion to be worth following. I'd consider myself agnostic as I realize you can neither prove nor disprove the existence of god(s). It is comforting to think there is a place to go after death, but I'm not going to parade that around as truth.
However, so many people claim to be of a certain religion, then share what they claim the bible says and then some other figure claims to be of the same religion and says the bible says something completely different. Ask different people in the same religions on what "god" thinks of gay marriage or if dogs go to heaven, and you will get conflicting answers. That, to me, speaks volumes. Ask a priest who has dogs if dogs go to heaven, and he'll say yes. Ask a priest who doesn't care for animals if dogs go to heaven, and he'll say no. It's hard to believe that what they are saying is "god's" word because what they say is obviously heavily influenced on their own likes and dislikes first and foremost. Then they try to pass their individual likes and dislikes off as the word of god. It's just happened too many times to make me believe. From my observation, they're not speaking "god's" words. They're preaching their own and using god as a name drop to support their individual likes.
The "bad" is that most religion works on fear. Do this and you go to hell. The focus is on what NOT to do rather than what TO do. Obviously, not all, but the heavy handed approach is outdated. The instilling fear in others to get them to "do good" is old and not something worth supporting.
I also hate when people take credit away from you. You didn't survive some terrible occurrence. No, it was "god's will" that you survived. I don't fret on this much. They usually mean it as a compliment, but it still gets annoying.
Although this picture says atheist, I still like the words behind it.

It's something that puzzled me always. That because god doesn't help, it was part of a greater plan and it is his will. He knows best. And when he does help, he's the greatest. That kind of thinking doesn't make sense to me. If he doesn't help when great evils are around, then is he worth preaching over? Or perhaps the existence itself is questionable given the appearance of aide is so random. It's like some ancients throwing people into volcanoes to make it rain. If it didn't rain after 10 sacrifices, it didn't mean that sacrifices have nothing to do with rain. No, it meant they needed to kill more people to appease the gods.
This is not me trying to hate on religion itself. I think religion has helped many people. I don't really care for it, and I just stated why. It simply doesn't make sense with me. But just because it doesn't mesh with me doesn't mean it doesn't mesh with others. So, I completely respect that.
I just wish the world had that same mindset. A lot less bloodshed if we just live and let live.