I have a 2 post assymetrical Rotary (USA Made) and a 4 post from Greg Smith Equipment Company (Made in China).
I personally prefer the 2 post. I have a '31 Model A, '27 Model T, '65 C10, '69 Camaro, '02 Tacoma and a '2010 Jeep Wrangler... they all work with the 2 post design. I will agree though that it takes a bit of time and effort to make sure the arms are located correctly.
And what I used before I had the lift: