Tripped on this one. There are many more songs where he excels (from TNOTB we have the title track and HBTN, from SIT Sea Of Madness and SIASL, from SSOASS Moonchild, from AMOLAD there's also FTGGOG just to name a few). But these here are my 25 favorite performances by Bruce (based mainly on personal taste bot also level of difficulty).
Invaders (minus the chorus)
Where Eagles Dare
Revelations
To Tame A Land
Aces High
The Duelists
Rime Of The Ancient Mariner
Caught Somewhere In Time
Wasted years
The Loneliness Of The Long Distance Runner
Infinite Dreams
Can I Play With Madness
The Evil That Men Do
The Prophecy
Gods Of War
Omega
King In Crimson
Trumpets Of Jericho
Book Of Thel
Jerusalem
Navigate The Seas Of The Sun
The Thin Line Between Love And Hate
Face In The sand
The Talisman
When The Wild Wind Blows
But in the end i'd pick The Loneliness Of The Long Distance Runner. The others are amazing but here Bruce takes it to another level.