Now that we have more information, I'd still say that they are all pretty close. Sprint is a great group but it's only friction. The only advantage over Shimano is that the hubs were sealed cartridge bearing, IIRC. The New 600EX on the 912 has the advantage of an SIS indexed shifting option but doesn't have aero brake cable routing. However, the IM has SIS and aero rb\\brake cable routing along with a better performing SLR brakeset. The Miyata arguably has the most sophisticated frame with the STB tubeset and while the Tange #1 of the IM is also very highly regarded, the VaLite stays on the stays do not pose much of a real world disadvantage and are arguably more desirable for powerful riders due to increased stiffness.

In the end, preference for most will come to brand loyalties in terms of bicycle, components and/or tubing. I could be very happy with any of the three, However, of the three, cosmetic and mechanical condition being equal, the Fuji would probably have the lowest overall market appeal due to the lower grade VaLite forks and stays, lack of indexed shifting and absence of SLR braking.