i think i've posted this before, but if i were to join a religion, i'd choose lds. it's a great organization.
Oh man. Why? I guess if you want to be part of the community/social side that's okay, but to be a card carrying temple worthy member you have to do some ridiculous stuff.
They build amazingly supportive communities unlike any other religion that I know of. If a Mormon moves to a new community, they're met with an incredible social structure - am army of families will help them move in, cook them meals, invite them over for diet cokes, etc. Plus the missionary thing is pretty interesting and gives their young people unique, valuable experiences. Not sure if that's what sys was referring to, but it's the good parts of the LDS organization that I think of. The bad things are the tithing and the misogyny and the history of racism that seem harsher than most other religions. Other than that, their requirements aren't significantly more harsh/strange than other religions.