I've always been crazy for Hanz Zimmer's music since I was little, Gladiator probably being my favorite. That last string of tracks of Elysium, Honor Him and Now We Are Free are just gorgeous. The Nolan Batman trilogy score is also A+. Time from Inception is also beautiful, and while not exactly Zimmer, the rendition of The Minstrel Boy from Black Hawk Down fucking gets to me hard.
James Horner has some wonderful music from A Beautiful Mind. Hymn to the Sea and Unable to Stay, Unwilling to Leave I always loved from Titanic. For the Love of a Princess from Braveheart was one of my first favorite movie score tracks.
The entirety of the LotR trilogy's score is great, with my favorite probably being Fellowship's and The Breaking of the Fellowship being my favorite from that.
The Mad Max Fury Road score is fucking amazing. JunkieXL's Wonder Woman theme is also fucking bangin'.
6th Station from Spirited Away and The Legend of Ashitaka are my favorites from Joe Hisaishi.
Some other one offs I love:
The main theme from The Revenant.
To the Stars from Dragonheart (this movie's so gooby, but I still love the shit out of it). This track tears me up everytime. Hell, the entire score was pretty damn good.