Very hard, as the only music I listen to often is from video games and my playlist has almost 700 songs. And I like some of these a lot more than others.
A Fleeting Dream, Fight With Seymour, Otherworld, A Contest of Aeons from Final Fantasy 10
Waterside, Eternity, A Land of Happiness, The Seal is Broken from Blue Dragon
Main Theme, Battlefield Dark Saint, The Capital of Uhra, Gongora's Plot, Narrow Dimension, and all the battle/boss themes from Lost Odyssey
Endless Carnage and Boss Theme 2 from Adventures of Mana
Battle with a formidable enemy, Ancient Ruins from Fantasy Life
A Fading Miracle, Blinded by Light, Sunset Prism, An Arrow Through Time from Final Fantasy 13/13-2/13-LR
Shattered, The Gauntlet, Heroes Never Die, Revenge Twofold, Nemesis, Painted Skies from Final Fantasy 14.
Priestess Aria and The Boundless Ocean from Final Fantasy 3.
The Oath of the Union, Beyond the Hills, March of Brave Vesperia, All at Stake from Tales of Vesperia.
The final boss theme from Tales of Xillia that I thought was really good back when I beat it but I don't remember what it's sounds like.
Just to name a few.