I went with a 1.25 inch body lift, and it was more for appearance than anything. I was happily running a lift for years and decided I wanted a little more height. So I went with the 1.25 and not only has it helped with rubbing issues, it looks great.
My opinion is that if you can do the lift yourself or with the help of a friend its well worth the money. If you have to pay a shop I would only do it if you are planning to run bigger tires and don't have a choice.