GW690iii more useful than GSW690iii
I have both cameras and have to agree that the 90/3.5 is more useful even for landscape use. With the 6x9 format you've got lot's of negative to work with. I don't find these camera's particularly heavy given the alternatives for a negative that size (Large Format view camera with a roll back). Having said all of that - I've also recently bought the GF670 and GF670w - basically modern versions of the GW series with a built in light meter and the ability to do 6x6 or 6x7. They are even better! Lighter, more 'pocketable', and easier to use with the built in metering. Smaller neg though...but my new 4x5 view camera will pick up the slack on that front (especially with a 6x12 back)!