I have been going back and forth between the following two boards for months now:
1. Vintage G80-3000 with blues, doubleshots and case borrowed from even older sample
2. Blue label 1391403
Overall it seems the G80 wins by a hair, as the blues are lighter and it powers up more quickly (allowing me to tap the space bar after I've turned on the mains power switch). Lately I put the M to the front again though (you may know that can fit two boards here ever since I got the monitor arm, but only one can be on the more reliable PS/2 port obviously), and it's also very nice.
So much picking on the poor MYs going on here... is that sort of an anti-FOTM movement? Yesterday Fujitsu Peerless, today Cherry MY, tomorrow the world? ;p
Of course it's not unsubstantiated, far from it, but then again there are more things that left me rather unimpressed, like any ALPS variety so far. The whites in my Focus make a Model M seem a board for wimps... I couldn't imagine pounding on these all day long. Blacks were lighter but hard-bottom-out galore (ouch).
The main problem of MYs is the friction especially during off-center presses that makes people pound on the keys in order to make sure that they register... at which point a linear response gets ugly, and this one in particular. Some silicone spray in all the key mechanisms of one of my G81s got that part sorted (works better with a worn-in sample). The "dead octopus" force curve still feels like it may give you RSI in the long run rather than giving that "I want to be typed on" feel, but the board is definitely usable with pretty good accuracy and rather low noise levels (solid as a brick, too). It's still edged out by most anything worth noting in my collection though (including several rubber domes), ending up somewhere in the rear with the Alps and Alps-like crowd and a somewhat stiff Chicony rubber dome cheapie.