Yeah, the overly vague titles annoy me to no end. Especially when they HAD a good title and then the studios decided to change it at the last minute because they thought it wouldn't appeal to mainstream audiences (i.e. The Wettest County in the World became Lawless).
I also get annoyed by titles that are simply the name of the main character. If it's a historical figure, it makes sense (i.e. Lincoln). But if it's just some random fictional character that we've (probably) never seen before, I don't understand why studios think that would motivate anyone to want to see a movie. To me, this is just lazy.
Dave
Jack
Jerry Maguire
Ted
Hugo
Charlie St. Cloud
Taffin
Lastly, here are a few more that just plain suck for whatever reason:
Reindeer Games
Alvin & the Chipmunks: Chipwrecked
Hop
Just Go With It
Battle: Los Angeles
Limitless
Tower Heist
We Bought a Zoo
Mr. Pooper's Penguins
Dolphin Tale
I Am Number Four
Soul Surfer
Spy Kids: All the Time in the World
In Time
Extremely Loud and Incredibly Close
Salt
Eat Pray Love
Knight & Day
The Tourist
Legend of the Guardians: The Owls of Ga'Hoole
Killers
Cop Out