Not to jump on the bandwagon, but I have to say Wicked. I actually really like the soundtrack, no matter what people say (it's catchy, it's cute, I quite like some of the orchestrations, nice voices), but when I saw the show, um, on Google Video (... what, I'm cheap!), I was really surprised by how irritating the script that tied together the songs was.
Now, I've never read the novel that Wicked is based on, so I don't know if this is just trying to be faithful to the source, but I hate all of those little made-up words that all of the characters seem to use ('surreptitially' rather than 'surreptitiously' comes to mind. As does 'hideocus'.). And the whole Animals thing was simply strange and confusing. I didn't think that any of the repartee was funny, and I felt like there was so little dialogue, they may has well have eliminated it altogether and gone in an all-sung direction like "Evita" or "Les Miserables."
In my pants, she has burst like the music of angels, the light of the sun! --Marius Pantsmercy