On the DC side we have hits such as Batman the Movie, other Batman films that may or may not agree with us, Batman Begins, The Dark Knight, Superman, Superman II and Watchmen.
On the Marvel side we have hits like Spider-man I, Spider-man II, Ghost Rider (ooh, I need to add GR to my "terribly awesome" post,) X-Men I, X-Men II, Wolverine, X-Men First Class, the Blade series (I haven't seen all of them, so I don't know if one was horrible and should be excluded,) Iron Man I, Iron Man II, Thor, Captain America, and the second Hulk wasn't absolutely the worst thing ever....
And if I didn't list one of your favorite DC or Marvel movies above... it's probably because I didn't like it very much... sorry. (<-- said in childish Sorry-board-game way.)
(Or I forgot about it.)