From: Vermont, USA
maybe I'm completely wrong with that assessment, but I would tend to say that you forgot a matrix game on that list:
WW2: Time of Wrath . (sorry of I do not provide the link, but it's easy to locate)
I cannot say anything about operation Barbarossa. I agree that Commander-Europe at War, which I do own, does provide some Panzer-General feeling. But personally, as soon as I had bought Time of Wrath, my impression was that this is a better replacement for the PG series. Just my 2cts, though.
Hartwig, thanks for chiming in. I hadn't heard that feedback before but I'm happy to point people at WW2: Time of Wrath as well. I considered the other two closer to Panzer General in gameplay, but WW2: Time of Wrath is a fine game too.