I have McCartney II, too! But I only have it on vinyl. I don't know about that bonus track, but I don't really like the song "Temporary Secretary." Why couldn't he just hire a permanent one? I don't understand.
But I do like "Coming Up." It's one of his best songs. I have a few CD's of Mr. McCartney, too. "Chaos & Creation" and "Memory Almost Full" are two of his best. But, "McCartney" still holds up with the best of them. "Driving Rain" is okay, but not really up to par. "Off The Ground" is good, too. But not as good as the aforementioned stuff.
As I mentioned before, I'd love to have all of John's stuff on vinyl. I have 3 of his LP's on vinyl. The others I have on CD. I do actually have "Two Virgins" and "Life With The Lions." Each have their own levels of weirdness. His best albums are "Imagine" and "Rock N Roll." Neither have Yoko!
As for the other Beatles, George's output on Dark Horse Records is awesome! I have the CD box set of those. Great stuff!
Now, Ringo, on the other hand, is an interesting one. No doubt his best album was "Ringo" which featured 3 other well known Liverpudlians... However, I do have several other CD's of his like "Vertical Man," "Liverpool 8," and especially, "Time Takes Time." TTT is great. I actually found my copy in the cutout bin in Walmart a couple of years ago. Quite a surprise, actually. Only cost me like four bucks. Totally worth it.