I voted for Beauty and the Beast, of the nominees.
Think about it: lots of musicals have won Best Picture in years past, although the trend isn't as strong the last couple of decades. Beauty and the Beast worked not only as a great family film and fantasy adventure, but also as a fantastic musical. If Oliver!, My Fair Lady, Chicago, and Gigi can all win best picture, I've got no problem with Beauty and the Beast. It's also my favorite Disney film, and I'm not even a big Disney fan.
That said, I can't complain about Silence of the Lambs... it's a great movie too.
I'm glad you're enjoying these polls. It's an interesting way to revisit movies of the past - not just the winners, but sometimes the smaller or odder or better movies that got nominated alongside them.