I liked Thunderbolts #1 enough to be interested in following the first arc and I HATE the character of Deadpool. Now that the team has been gathered they need to do something. I cant see what yet, but it better be something interesting.
Uncanny Avengers however I have found to be horrid. The resurrected Red Skull, who is clone of the original who has been asleep until recently is back, and completely wrong in character.
Avengers seemed forced to move us into a bigger team. As stated above the Avengers have beaten far more powerful foes without needing some big team assembled. Of course they didnt have a second movie coming out that will be space based so there is that.