My choices for the Best Original Score Oscar.

My shortlist:

"Big Hero 6," Henry Jackman, composer
"Captain America: The Winter Soldier," Henry Jackman, composer
"Dawn of the Planet of the Apes," Michael Giacchino, composer
"Divergent," Tom Holkenborg, composer
"Dolphin Tale 2," Rachel Portman, composer
"Dracula Untold," Ramin Djawadi, composer
"Earth to Echo," Joseph Trapanese, composer
"Edge of Tomorrow," Christophe Beck, composer
"The Equalizer," Harry Gregson-Williams, composer
"Exodus: Gods and Kings," Alberto Iglesias, composer
"The Fault in Our Stars," Mike Mogis, composer
"Fury," Steven Price, composer
"The Giver," Marco Beltrami, composer
"Godzilla," Alexandre Desplat, composer
"Gone Girl," Trent Reznor and Atticus Ross, composers
"The Grand Budapest Hotel," Alexandre Desplat, composer
"Hercules," Fernando Velázquez, composer
"The Hobbit: The Battle of the Five Armies," Howard Shore, composer
"Horrible Bosses 2," Christopher Lennertz, composer
"How to Train Your Dragon 2," John Powell, composer
"The Hunger Games: Mockingjay - Part 1," James Newton Howard, composer
"The Imitation Game," Alexandre Desplat, composer
"Interstellar," Hans Zimmer, composer
"The Interview," Henry Jackman, composer
"The Judge," Thomas Newman, composer
"Kill the Messenger," Nathan Johnson, composer
"The Lego Movie," Mark Mothersbaugh, composer
"Lucy," Eric Serra, composer
"Maleficent," James Newton Howard, composer
"The Maze Runner," John Paesano, composer
"Mr. Peabody & Sherman," Danny Elfman, composer
"The Monuments Men," Alexandre Desplat, composer
"Night at the Museum: Secret of the Tomb," Alan Silvestri, composer
"Nightcrawler," James Newton Howard, composer
"Noah," Clint Mansell, composer
"Ouija," Anton Sanko, composer
"Penguins of Madagascar," Lorne Balfe, composer
"Pompeii," Clinton Shorter, composer
"The Signal," Nima Fakhrara, composer
"Teenage Mutant Ninja Turtles," Brian Tyler, composer
"That Awkward Moment," David Torn, composer
"The Theory of Everything," Jóhann Jóhannsson, composer
"This Is Where I Leave You," Michael Giacchino, composer
"Transformers: Age of Extinction," Steve Jablonsky, composer
"22 Jump Street," Mark Mothersbaugh, composer
"A Walk among the Tombstones," Carlos Rafael Rivera, composer
"X-Men: Days of Future Past," John Ottman, composer

From this shortlist of mine, the following films are I'd already seen:

"Big Hero 6," Henry Jackman, composer
"Captain America: The Winter Soldier," Henry Jackman, composer
"Divergent," Tom Holkenborg, composer
"Earth to Echo," Joseph Trapanese, composer
"The Fault in Our Stars," Mike Mogis, composer
"The Giver," Marco Beltrami, composer
"Godzilla," Alexandre Desplat, composer
"The Hobbit: The Battle of the Five Armies," Howard Shore, composer
"How to Train Your Dragon 2," John Powell, composer
"The Hunger Games: Mockingjay - Part 1," James Newton Howard, composer
"Maleficent," James Newton Howard, composer
"The Maze Runner," John Paesano, composer
"Noah," Clint Mansell, composer
"Penguins of Madagascar," Lorne Balfe, composer
"Teenage Mutant Ninja Turtles," Brian Tyler, composer
"Transformers: Age of Extinction," Steve Jablonsky, composer
"22 Jump Street," Mark Mothersbaugh, composer
"X-Men: Days of Future Past," John Ottman, composer

And the rest are runners-up. And the list above, here are my picks.

"Big Hero 6," Henry Jackman, composer
"The Fault in Our Stars," Mike Mogis, composer
"The Hobbit: The Battle of the Five Armies," Howard Shore, composer
"How to Train Your Dragon 2," John Powell, composer
"The Maze Runner," John Paesano, composer
"X-Men: Days of Future Past," John Ottman, composer

Source: Oscars.org News