Dark Knight Rises and Avengers were both pretty disappointing to me.
Rises was partially because of my own unrealistic expectations, I was hoping for a perfect ending to what still is one of my favorite movie trilogies ever, and it just couldn't live up to what I was expecting. It did have some problems though, like weak plot points (we're gonna set up a bomb and then let it explode in 3 months rather than just blow it up right away because...uhh...) lame fight and death scenes, and Bane was totally upstaged at the end. Overall I was still entertained and enjoyed the movie though.
Avengers I saw a couple weeks after it came out, and everyone was saying it was "the best movie ever" and a lot of ridiculous statements like that. When I saw it, it ended up being a pretty typical, family-oriented Marvel movie. It's not bad, but there's nothing extraordinarily unique or interesting about it, and I don't think it deserves all the praise it gets.
I stopped going on this site months ago, because I realized it's trash, but every now and then I'll stop by to see how it's doing, and notice that the site's reviewers give almost every comic they review 5 stars. Who the hell do they have reviewing these things? They seem to love almost every comic they read, their reviews are basically useless. The only time I know to stay away from a comic is when it gets 4 stars, cause that seems to be the worst rating they have on this site. Why is this site so damn bad?
I loved all of them, but TDK was easily the best to me, and TDKR had some pretty weak plot points.
Also, I don't get why people say "TDK wouldn't be good without the Joker." Ya, because the Joker's schemes are basically the plot of the movie? That's like saying "The movie wouldn't be as good if it didn't have a plot."