I do wish DC would rediscover the beauty that is the single issue story.
Busiek did three single-issue stories. The Prankster story, the Wonder Woman team-up, and the issue he did with Fabian Niceza.
When I think of great Superman stories, I think of ones that went over multiple issues: Maggin/Bates's "Who Took the Super Out of Superman?" Martin Pasko's Amalak tale, Superman infiltrating the Superman Revenge Squad, and classic Legion stories like Jim Shooter's Sun-Eater and Adult Legion, and Levitz's Earthwar and Great Darkness.
I honestly don't find single-issue stories enjoyable. Well, I
can, but they're like a dancing bear: cute for about five minutes.
What makes me CARE about a book and what goes on, are the running subplots: not just the character subplots and love triangles, but the recurring mysteries. These keep me coming back, these keep me interested. And there's something classic and grandiose and "big" about stories like AVENGERS/DEFENDERS WAR.
That's why I'm really loving Busiek's Superman: the subplots. The Third Kryptonian; Subjekt-17; Sirocco; Arion; Superman wondering if he does too much.
Let me put it another way: I can watch an episode of LAW & ORDER if I'm bored in a hotelroom or something. But I won't
care about it. I won't think about it when it isn't on. In fact, right now, I'm trying to picture the cast of L&O, and I can get Sam Watterson and Angie Harmon and Ice-T, and...nobody else. I've seen 15 or so episodes, but I don't know their character's names.
On the other hand, the stuff I really love is ALIAS and LOST. Which are almost entirely serialized, almost entirely build on other episodes. It turns the entire series into one big episode, which has scope and depth that is absolutely unbelievable, which makes old-fashoined one-hour dramas like HAWAII 5-0 look old-fashoined.