I have the Linhof, Horseman (SW612 variety) and Sinar Panorama. The Linhof has the largest image area and it has the build quality of a Mercedes, but it's heavy. Other than that it is a joy to use. The Horseman is simple and rugged and pretty intuitive to use, somewhat more so than the Linhof. The Sinar has the advantage of being able to be slipped under a GG, but it requires a special film cassette, special loading/operation procedures, and appears IMO finicky and somewhat fragile. Both the Linhof and Sinar accept either 120 and 220, if that makes a difference.
So in the end, go for the Linhof if you like the larger image, require the use of 220, and have the wallet and back to carry it. Get the Sinar if you need the slip-under-the-GG capability. Otherwise, get the Horseman, which IMO is the best overall solution.