Avengers: Earth's Mightiest Heroes!
This show airs on DisneyXD and I found it surprisingly good. There's only been one episode so far (not including the episodes prior to the actual forming of the Avengers) but the action is good, voices are decent, stories compelling, and they even showed the death of Captain America's sidekick Bucky. I say that to say it's not a kiddy interpretaion of the Avengers, it's the real deal. I don't want to give away the villain, but he did a hell of a lot of damage, to the point where people had to have died. I'm very interested to see where they take this show. 7.5/10
Based on your recommendation, I went back and started watching this series and I'm sorry man, but this show is weak (especially compared to the Marvel show that immediately preceded it, Spectacular Spider-Man). The animation is just "blah" (with some particularly awful action animations that don't look anywhere near as powerful as the reaction they get), the writing is childish at best (and not in a good way like in Spectacular Spider-Man or Justice League), and the voice acting is spotty. Probably the thing that bugs me most watching it, though, is that I just feel
nothing watching it. I don't hate it, but outside of a few witty lines (uttered by the Hulk of all people) the show's just so...average. The show's also hit hard by the censorship mallet, as just in these opening episodes there are
many times when an attack should have inflict major if not fatal injury that
normal people just shrug off (a scene where a woman gets slammed upon by the sharp edge of a giant axe blade comes to mind, which only "slams her into the ground"). And where are the big name villains of the Marvel Universe? It's pitiful when the biggest named villain I could find was The Crimson Dynamo. The villains on this show don't look like they'd make a decent C or D-class Rogue's Gallery. This show makes me very fearful of what Disney will turn out with Ultimate Spider-Man.
That isn't to say it's all bad, though. Like I said, the writers occasionally slip in a funny line (as mentioned, one line from the Hulk when a villain decides turning his body to rock is a good idea is particularly amusing) and I do like the continuity between episodes. I also like this duality angle they're exploiting with The Hulk, which hasn't really been done in animation before with the two sides of Banner talking with one another and reasoning through situations. I'm hoping that this series manages to find a way to make Ant Man and The Wasp not completely and utterly lame, but that's like trying to make Aquaman not totally lame...oh wait...*eyes Justice League*
EDIT: One other good thing about the series, though: it does have a pretty cool theme song, in that 80s/90s sort of way.