It was a tough call between 7.0 and 7.1. I went with 7.1 because of the fonts folder, which I find superior to storing fonts in the system file.

My only objection to 7.1 is that Apple has not released it for free. I own two copies of it and therefore only have it running on my LC and (soon to be) my SE. I'm stuck with 7.0.1 on my PowerBook 170 (which I don't want to use with a newer version because of its limited RAM).