Depends upon what you are going to do with the levitation. If you are merely going for shock value for friends, rather than seriously adding it to a magic act or routine, then don't waste the money on either. Simply pick up the Self-Levitation Video from A-1 Magic Publishing.
King Rising is a slight improvement in some ways on the above. It is a lot more money, though.
Elevator 2 is very expensive for a stunt. It is probably also too good to expose if you goof it up in front of an audience.
So, what do you intend to do with it? If you are merely a magic fan who would like to learn to levitate, you are probably wasting your money with any of the above. In that case, stick with The Self Levitation Video. It has low cost, it is performable under the right circumstances, and it is easy to learn.