re: The NEW Complete Lift Listing and Comparison, They're All Here! UPDATED!
The best and worst are all opinions and personal preferences. It depends on how you wheel, how much you wheel, where you where, etc etc etc. I could tell you one thing, someone else will tell you another. One suspension is designed for the desert while another is just to provide you with a more comfortable ride and a small lift.
There is no way to describe which is best and which ones are ok. A full suspension system will be better than a spacer lift in every way, but it will cost you. Some manufactures make great products, and some make ok products. We all have our opinions on those though, and if we started giving our opinions on suspension systems and manufactures there would be an argument and people would get their feelings hurt.
The best way to decide what is best for you and what is best, is for you to do some research, then some more and then even more.