The clone of you would have all of your DNA--so it should be just like you, right? Common sense would point out that a lot of what makes you 'you' are your experiences, which could not possibly be duplicated in enough detail to guarentee an exact copy of 'you.' But with more and more studies showing that nature is primarily in charge, sometimes in spite of your environment, this article explains why DNA is not the whole answer. This article answers some interesting questions I've had. When I was in elementary school, there were two identical twins that were hardly identical at all. They looked similar--but their hair color was slightly different, their noses were shaped differently, and they even had other differences facially and otherwise. Most remarkably, was their amazing difference in personality. One was very sporty and the other was very girly, with all of the stereotypical packaging--casual outfits with no extras for the first and jewelry, hair bands, and particular styles for the second.
So DNA is important, but it's not everything.