2 post list is the best. Hands down the most versatile.

2 questions:
What is your intent? (Service or extra parking?)
What is your budget?

Intent: (service) 2 post for primary, and for those lucky enough a drive on 4 post for the second lift.
(parking). nothing is easier than the drive on. No arms to set. ( granted if the same car is going up in the air every time, placing marks on the floor for car placement, and marks on the arms to duplicate position, this can be made easier).

Budget: You get what you pay for. an $8000 Rotary or Nussbaum of 8-10000# capacity will put a smile on your face everytime. (And easily dead lift the suburban).
There are $2000 lifts that wont do the burb and are "Home owner" grade units. In that price range, I'd buy a used Rotary or Nussbaum any day. ( I have a used Nussbaum ).
Searching for lifts can make your head spin. Another route to go is find someone in your area that services/sells lifts and pick their brain. They may be who you call for service down the road, and if you pick something that is hard to get parts for, you might be disappointed.


This is VERY affordable: (Under 1500 before freight)
http://www.eagleequip.com/page/EE/PROD/LI-ETP/MTP-9A

__________________
85 300D 3 pedal. Current project.
83 300TD (need rear wiper assembly dead or alive)
84 300SD Daily driver
85 300TD almost 400k miles and driven daily.
98 E300D *sold
86 300SDL *sold and made flawless 10 hour journey to new home.