1) Cinderella Search (12" version!!!), which would be in my Top 5 Marillion songs. I must confess I put my own idealised version of Fugazi on to my iPod with She Chameleon replaced by Cinderella Search in that same sequence on the album.
2) Grendel. Still haven't tired of it one bit.
3) Three Boats Down from the Candy (the second version/Mosley version which is far superior in my opinion).
Tux On would be a close fourth.