Cool test well done, i dont read GS that much lately and i ve missed this thread but i just read the first 1-2 pages only so i ll give it a go. I dont have either synths, listened 1st vid in my laptop with earbuds, sounds are very close indeed but like yoozer says i hear that richer attack in synth A and i thought too that maybe pitch is not instant, later in the higher notes the difference is bigger i think B folds up and its gets thinner like a vst, at portamento it gets obvious i think (or just very different) B sounds very dull and too sharp, would never put that in a track so my guess is A = OB8.
I haven't read the results which page is it or u can tell again.
I think u ve matched very well the lower register but in the high notes maybe with rematching it can sound closer ofc its not practical and i wouldn't expect someone to do it just as an observation, the sparkly highs though i hear in A i dont think we can get that from a vst, except if im wrong which will probably make me buy diva. About the attack a judicious amount of portamento in a vst makes it sounds more analog ime.
If it doesn't take a lot of time to do this, do u think u could match aalto with your oberheim? It has some nice ob patches in there but idk how close it can get to the real thing.
Again well done and quite interesting, keep it up!