Well, I know quite a lot about cloning, and I'd say I'm partially against it. The problem is, those that speak out against cloning know nothing about it, so it makes them look like idiots to the science community and creates more frustration than progress. For example, if you clone yourself, that clone will have to grow up, so it will be X years younger than you (X = your age when you clone yourself). Secondly, almost as many of your physical and mental features have to do with mutations rather than genes. A clone would look more like a brother than an exact copy, and it would not think anything like you as that has to do with upbringing.
A great number of diseases could be cured with embryonic research, as well as physical problems (such as parylization) and women who normally couldn't have kids would be able too (not by cloning someone and implanting them, rather cloning an egg and injecting it with sperm). Still, I do believe its wrong.
But here comes the parable. I don't think its the place of our (American) government to tell people what they can and can't do as far as science is concerned. If God hates cloning that much, he will stop it. America was founded on freedom. There are many things I believe are wrong, but I don't think the government has any place outlawing it. For example, I think violence and nudity in movies is bad, but I believe the government has no right controlling artistic expression.