Prest_400
Multiformat
I vote for all of them.
I've owned GW690iii's and currently own a GF670.
The GW690 versions are bit loud and clunky but the images are great and the cameras seem bomb proof.
The GF670 is the quietest and smoothest camera I've owned. It's only "fault" is battery dependence.
Has a 6x7 gate and a built in 6x6 mask that is very convenient.
The finder is gorgeous. So bright and clear with a nice RF patch.
I don't have a lot of images online so this one has been posted a few times before.
The shutter is so smooth and light the camera can be Easily handheld to very slow speeds.
I'd deem the GF670/Bessa III as the Ultimate Medium format travel camera. (Someone Hardcore could argue it is not an actual Fuji camera, but a Cosina).
Multiformat is a fantastic feature, with the real adjustment of 6x6 12 frames and 6x7 10 frames. Thought that +2 shots on a roll on 6x6 can make a difference with film economy during travel.
Prices are just a bit higher than a Mamiya 7 kit, so not bad for a new and modern camera with such features. I personally went with the GW's for the low price and bang for the buck they are. Kind of forgot about this camera but it seems really fantastic.