I really didn't know what category to place this in - so I chose enlarging... as one can always crop, I suppose. This is an issue I've been grappling with lately. I shoot medium and 4x5 formats... and still have yet to be really SOLD on any ONE format... much as I would LIKE to be. So- I find myself very attracted to squares. I find square format really nice for a lot of reasons - I think it's easier in general to find subject matter which will work with this frame.
But also - an equal fave would be 6x12 (2xsquare). I find 6x9 ABHORRENT - though I AM aware it COULD be solely out of association with 35mm equipment. Beyond 6x12 is generally pretty okay too - as the ratios sort of break down and, to me, it all becomes just 'rather long', but very suitable for some subject matter. One's sort of limited to landscapes, quite naturally. As a sidenote, I find the golden section pretty awful too! - I don't buy into that (I'm suspecting that attractive ratios have ONLY to do with cognitive association).
So I'm wondering if anyone had similar (or opposing) views... and, more importantly, why they have these views... might be interesting if we can find some commonalities.