I have a hard time voting. I have two IIIfs and enjoy shooting with them.
However, just this past week, as I was browsing around, I picked up a IIa w/f2 Xenon and case in good condition at a consignment shop for $35. This is my 1st Retina Rangefinder.
Amazing heft for such a small camera. I'm enjoying shooting my first roll so far. Definitely a nice little walk around camera.