All the guys named above were fairly capable wrestlers at the time they faced Michaels, so it's not like it was an HBK one-man show like Flair had to do, plus Michaels never had to carry slugs like Luger, Nikita Koloff, Butch Reed, and a bunch of Von Erichs, who were all carried by Flair to great or near-great matches.
Some of the Von Erichs were hardly "slugs". David in particular was a damn good worker.
And Michaels carried plenty of subpar guys (Nash, Sid, Yokozuna).
Considering Michaels' singles career predominantly only lasted 6 years (1992-1998), it's pretty impressive how many guys had their best match with him.