The Queen/Solo officialy unreleased tracks which I wouldn't like to hear again and again are:
1. Ogre Battle (Forgotten Intro from BBC session) - it was available to download on my site and most of other Queen fans wrote me that they understand then why it has been forgotten. Much of wild guitar sounds with some crazy percussion. It sounds like a soundcheck.
2. I Was Born To Love You (Very early demo, not released on the FM Box Set) - no Freddie vocals, just synth. Mad synth.
Other tracks are okay. And officialy released too - even Kiss and Body Language :-)