I definitely think they peaked, program-wise, with the Busters. (I think you covered all of them save for an okay run of matches with Power and Glory.) The Orient Express stuff was sometimes very good, other times a bit flat.
I'd argue the variation in the matches is part of what makes Rockers-Busters fun - some of the matches, like the SNME one, are completely different, and even the house show matches would go in different directions (they had 2 in the same day at Boston and MSG with different FIP sections and with one being 5 minutes longer).
I'd have to rewatch the Harts-Bulldogs matches to really go deep, but I think what set them apart from other 80s WWF tags was the quality of the offense, and the way the structure tended to be a bit more free form. 80s WWF tag wrestling was VERY formulaic, so even slight deviations feel pretty good. They were just so far ahead of the other teams at the time that it's sort of stunning to watch. I do like the matches with the Dream Team too, though, as Valentine was one of the only other guys on the roster who could keep up with the Bulldogs. Has anyone ever done a Dream Team comp? I'd be curious to see more of them... there's an amazing match they had with Santana and Steamboat that made me wonder if they're a bit of a lost great team.