@sickVisionz: Again points missed. The more you water down the original vision the less popular it becomes. DC proves that. When you take a creator off a comic/manga an switch out some one else. Sales spiral for a bit. Some times they go back up but most of the time its a game of loss.
Your also pointing out works on titles after the original creators are long gone from the work force. Bob Kane died 1988 at the age of 83. Dark knight returns was published in 1986 when he was 81 an retired. The Dark Knight returns also along with The Watchmen helped cross a gap in audience the comic code helped create. As a general rule people like what they like 1st. So if people are exposed to the new stuff 1st why its better than the old because its " different" not in the canon they know.
DC is the perfect example of this their canon has been misfiring for years. Not ever saying a creator cant be worse then those after him. But for years The Killing Joke an The Dark Knight returns were considered by DC as elseworld series. Then they kinda worked The Killing joke into canon. Then misfired again with a nothing redo. Your examples are some of the best stories in DC . But DC is not the same thing as a creator owned universe. They are work for hire just like Marvel.
Tho a good example for DC would be The Watchmen. The original by 2008 had sold over 1 million copies of the trade. Just the trade ( graphic novel ) not counting all the printings of the issues.Then Before Watchman came along last few years an its sales dropped. It launch was touted as a huge win. over 100k for each title. An then they started dropping sales left an right. Yet to read any one say man these new guys are much better than Alan Moore.
Actually never in my 43 years among comic book stores , comic fans , comic sites etc have I ever heard some one go man I am so glade the original creator is gone an these new guys took over.
No one ever said hey that http://www.imdb.com/title/tt0831887/ was much better than Will Eisner The Spirit comics. Just be thankful I did not bring up http://www.imdb.com/title/tt0327554/ /shudder.
Comic fans do talk of creator runs on comics thats true. But never have I hears an yea the new "guy" was better than the creator.
edit sigh the imdb links died.