Which lift is preferred (2 post or 4 post)?

Really depends on what you are doing to me. I have a two post and sometimes the lift post in the middle is a pia to get the door open, but great on suspension work, 4 post is great also for most work but you have to lift the vehicle off of it to do suspension work. tuff like body work they are great. Really to me it depends on what you are doing with it.