Maraxle said:
Savage Dragon makes me wretch. It singlehandedly put an end to comic book collecting for myself and at least three of my friends. After reading the first issue or two, we were all done with comics forever.
Seems a bit extreme to me. If you don't like a book just don't buy it. Yes, Eric Larson's book was an acquired taste, as the book had a very different feel to it due in part to his notion of 1 year reader time = 1 year book time.
Personally, I really enjoyed the first 75 issues, then didn't care for the change of direction and then dropped the title. I picked it up again for a short run (issues 98-104) but then decided to drop it again.
Now, back to "really bad concepts", a few more worth mentioning:
Black Goliath - Trying to capitalize on the hip black-power theme, Marvel created this awful book in the mid-70's. It wasn't planned as a mini-series, yet it only lasted for 5 issues.
Crimson Plague - The name says it all. Although beautifully drawn by the great George Perez, this concept was a bad idea from day one. A sci-fi saga that mixes the Aliens film idea with a lethal plague carrying person, the disease causing everyone to instantly bleed to death.
Moonknight - Fists of Konshu - Moonknight was never meant to be more than a Marvel version of Batman, so why anybody thought that they should play up the Egpytian God aspect of his origin as the main thrust of the character is hard to imagine.
NFL Superhero Marvel mixes professional football with comics for very dubious results. I don't know if anyone ever bought this two-issue mess, as I see tons of copies in the bargain bins at comic shows.
Crisis Knock-offs Crisis on Infinate Earths was classic. D.C. should have just let it be at that, but instead they tried to duplicate its success with one poorly conceived cross-continuity "Epic" maxi-series after another. I don't remember the names of all of these off the top of my head, but there were at least six of them in the decade after Crisis.