While Kristin can hit the notes, her not voice is obnoxious anyway, and the higher she goes, the worse it becomes.
I don't know that I could choose just one.
A Chorus Line was bad, but I like it.
The Wiz
I'd say Annie but I don't like the show either.
Joseph and the Amazing Technicolor Dreamcoat was horrid.
Hair
Oliver (parts of it are good, but the musical numbers go on way too long and some of the arrangements are off.)
I'm sure I could think of others, but I can't think of any right now.
Gypsy - Betty Buckley
http://www.youtube.com/watch?v=tUN5XoB5vFs&feature=youtu.be