Definitely The Fame Monster
The Fame had a few outstanding tracks (Just Dance, Poker Face, Lovegame, Paparazzi), but tons of filters (Starstruck, Boys Boys Boys, to name a few). In fact i like less than half of the tracks and the whole album becomes boring after Beautiful, Dirty, Rich in my opinion.
The Fame Monster is full of hits. Songs that are deemed as filters in fact worked to give the entire album a distinctive character. I can just listen to the entire album and not being bored.