I will live the biblically based arguments to others; not being a Christain or Jew, its seems a bad idea for me to tell them their position.
That said, I do not like cloning, can see no good argument for it, and find most of the cases and scenarios suggested for cloning to be ethically horrifying.
I guess you could put me down as "undecided"
But, seriously, cloning, even cloning of animals, is a bad idea. I can't say I totally blame scientist for investigating it, but I think that well before Dolly the sheep drew her first breath that they should have discontinued the experimentation.
"Be seeing you..."