I really liked Avengers Earth Mightiest Heroes, Fantastic Four World's Greatest Heroes and The Incredible Hulk (1996-1997), but the other series were indeed either boring or awful according to me.
DC Comics always had much better cartoons to offer. Not only DCAU, YJ and GL:TAS, but also The Batman and Legion of Super Heroes were awesome. And although I haven't seen much from Teen Titans, it's still much better than anything else from Marvel. (It's actually pretty good if you want a superhero cartoon with a bit of humor in it...)
Skandinavien, här kommer jag!
Skandinavia, her kommer jeg!
Scandinavia, here I come!
Scandinavië, hier kom ik!