India Ink, your experience seems pretty much the same as mine. Over the last 15 years, I would keep trying to like the Superman titles. I'd read them for a little while, then drop them all in disgust for a longer while. This is still going on. I just dropped
Action,
Adventures, and
Superman (again).
Action was the worst of the lot. The only continuing
titles I currently read are
Birthright and
Generations III.
Back in the summer of 1998 when those four homage storylines came out, I picked up the first issues of all of them. Like you, I liked the Bogdanove Golden Age one, for the same reasons you list. But I also liked Karl Kesel's take on the Silver Age. A lot of fun and well done - we got Krypto for the first time in who knows
how long, the real Supergirl, Jimmy Olsen having crazy troubles, the Silver Age Krypton, an optimistic and competent Superman, etc.
But the other two were absolutely horrible. Stuart Imonnen was supposed to be writing about the 1970's (Bronze Age) Superman, but the name alone says it all. He called it the "Polyester Age" and the story was disgusting. It might have helped if he'd actually
read a 1970's comic. I was hoping for something at least vaguely reminiscent of Bates and/or Maggin (or even Wolfman!), but he didn't get the character or the era at all. Same for Jurgens' take on a future Superman. Great idea, and I'm sure he tried, but it was still just Dan Jurgens.
So I'd say that two of the storylines were worth reading, and two weren't. I only wish they'd left out all that Dominus garbage and just let the stories stand by themselves without needing to "explain" them. Or at least they could have let them have endings! Superman got whisked back to the present before any of the storylines could wrap up. Those first four issues got me back into the Superman titles - but the last four got me back out.