Do you believe lethal injection is more human than the electric chair, and why?

I think I believe lethal injection is more human. I say that because there are 3 things that people use when doing lethal injection. The first thing puts them to sleep, while the last one kills them. With an electric chair, the person feels the pain and is awake. I personally believe that some people should be put in an electric chair instead of leather injection, but it depends on what the person did.