Here's my choices:
Freddie: BoRhap, DSMN or MOTBQ (which is really underrated in my opinion)
Brian: TPS or HTF
Roger: TATDOOL or RGG
John: AOBTD or YMBF
Freddie - My Melancholy Blues
Brian - The Night Comes Down
Roger - Calling All Girls (I know, odd choice)
John - All of them (but if I had to chose one, Spread Your Wings)
Freddie: very difficult to choose, I like / love almost all his songs
Brian: Brighton Rock / Dragon Attack
John: Misfire / Spread Your Wings
Roger: Tenement Funster / Radio Ga Ga
Freddie - Bohemian Rhapsody / Don't Stop Me Now
Brian - The Prophet's Song / Brighton Rock
Roger - Modern Times Rock'n'Roll
John - I Want To Break Free
Queen - Innuendo/The Show Must Go On
Brian : Father to Son/ white Queen, Teo Torriate and Dead on time
Freddie: The fairy feller's Master Stroke, Bohemian Rhapsody, The millionaire's waltz and Princes of the universe
Roger: Sheer heart attack, Ride the wild wind (credited as Queen)
John : I want to break, you and I and My life has been saved (b/side)
Brian - White Queen / Prophets Song
Roger - Fight From The Inside
John - I Want To Break Free
Freddie - Funny How Love Is (but almost everything from the Queen II b-side)
Brian: Save Me, Put Out The Fire
John: You’re My Best Friend, Need Your Loving Tonight
Roger: Heaven For Everyone
Freddie: Somebody To Love, Don’t Stop Me Now,
I like lots of all songs from all of them. At this moment, I like
Brian - See what a fool I've been (live versions)
Freddie - The fairy feller's master stroke ( I like to sing the line, "Ploughman, "Waggoner Will", and types)
John - Spread your wings (all round beautiful song!)
Roger - Drowse (best song IMO by Roger)