I pretty much agree with Bill, here are my few differences in opinion:
Larger vs. smaller dorsal fin. Everything considered, I'd rather have the taller tail, just my personal preference. Might just be short tail envy, I’ve never had a 150 with the tall tail.
Regarding flap switches. I've always liked the preselected switch, it just seems more convenient. ( I do understand that the preselected switch is more complicated and has the reputation of being less reliable.) Of the four airplanes I've owned, three did not have preselects, and I'm totally comfortable doing it myself. My 1966 150 had the kind of switch you have to hold both down and up, and my 1971 150 has the kind I have to hold down, but can flip up for "Set it and forget it" retraction. I certainly prefer the later, especially for T & G's, go arounds, and dumping the flaps when I want to stop in a hurry. Preselects are a similar thing, set it to 20 or 30 degrees and you can concentrate on something else. Doing it yourself takes a few seconds, that you could better use looking for traffic.
Bottom line though, I would not reject any 150 or 152 for either having or not having any option. It's mostly about convenience and personal preference. They’re all a heck of a lot of fun to fly, and you can quickly adapt to any of the different setups.
The more important issues to me are the additional luggage space in the 1966 and later models, long range tanks are preferred, and Aerobat over non Aerobat.
