My boys are all involved in sports, mainly baseball, basketball, and football. That is an easy question for me. I'd want to be programming computer and video games. I think the most positive aspect of my career is that it is always changing. It never gets stale.
Computers are probably the most rapidly changing technology in existence today.
In my job, you have to keep up with the changing technology. That means taking classes from time to time, which can be good or bad depending on whether you like learning new stuff. I love it. Probably the most negative aspect of my career is that it can be long hours. That means working long hours to meet a deadline, if necessary.