These are just what I think are the all around best, of course every variation has different match ups, but these are the ones that I think put in the most work.
Okay. Well, I disagree on Kano's behalf. I think Cutthroat should be his go to variation. It has safe 50/50s, higher damage, and he can use Charge Up (ex) off a mid hitting, advancing block strings to set up a 50/50 attempt. On top of this, he has almost all the strengths that Cybernetic has with the exception of mid-hitting knives (that do low damage).
After the latest patch, UpBall has great anti-air priority, on top of his already great D2, Kano-Ball Cancel, and anti-airing normals. Jumping in on a good Kano is as about as juicy a proposition as jumping in on Lao. Cybernetic's up-laser, even buffed, doesn't much add to his overall strength.
So really, when you're talking Cyber versus Cutthroat, you're talking trading mid-knives for safe, though short-ranged 50/50s, mainly. Weighing those options, I would think the 50/50s should out-weigh the knives in most match-ups?