But if you're going to include the Dial-H identites, that might not be fair. I mean, really, were ANY of them good...? Even when Bob Rozakis tried to take it seriously, toward the end of the Adventure run, the concepts weren't exactly marketable. Next, you'll be going after all the characters created in the '90s...
Howzis and Whatzis excepted, of course. It's really scraping the bottom of the barrel when you can't even be bothered with the name.
On the other hand, how about a different direction? What about the characters who really have nothing to recommend them, and yet became the favorites of both the writers and fans for no good reason? The example that comes to my mind is Zatanna. She's a legacy hero of a guy nobody remembers and whose stories made no sense. She can do anything, which means that every story including her is required to explain why she didn't wave the problem away. And in stories where she's allowed to be useful, her gimmick slows down reading the action while you rearrange the letters in the spell. And she kinda dresses like a hooker.
While I don't deny that some writers have built interesting stories around her, I'd say that she should rate at least as crappy as the Red Bee, right? Heck, she wasn't even introduced as a superhero--she was a damsel in distress soliciting (heh) the likes of Hawkman. How sad a case do you have to be for Hawkman to be a step up? "I'm all-powerful, but what I really need is a guy with wings and a mallet to help me!"