I'd say neither If we're talking about personal life, good, obviously. I do not regret anything that much to want to press 'reset', though. As far as 'life' in America. unsure. The country we are is shaped by our past. I'd say let things move foward. Sure, America, you, me and everyone has made mistakes...how do we know that if we hit the reset button we woundn't repeat history all over again? Would we really make a different choice if you had to do it all over again? Its easy to say 'yes' sitting in a nice chair in front of a computer screen with all the time in the world to think about it. Thats something you have to remember......
Another thing. Not all people are 'good' or 'evil'. Some people would say yes to kill twice as many at collembine (sp?). Some would say 'yes' to help 500 more cancer patents.
I think the question is, what would YOU do if you could hit the reset button. Not people as a whole.