This sort of list is never really meant to be objectively accurate - it's just to get people posting about it.
I got a GS645S a few months ago - similar to the GA645 but without AF, which I'm not keen on anyway - and it's one of my favourite cameras. Fantastic lens, feels wonderful, and the only thing it needs batteries for is to run the lightmeter. Excellent general-purpose shooter, as long as you don't want to change the film too often of course. I don't see enough love for the series on the net quite frankly.