AT&SF is way, WAY, WAY too long. The train could be in Santa Fe before that number ends.
Trolly Song isn't a bad number but the staging makes me cringe. I know it's a musical but the rapt interest of random strangers with her tale strikes me as more ludicrous than usual for the genre.
Merry Little Christmas is a classic but I've always wanted to hear the original downbeat lyrics, before Judy persuaded the writers to lighten it up.
Easter Parade has always creeped me out, with the decades of age difference between Judy and Fred.
Rainbow is eternal.