Diablo III/Awesome

• The cinematic teaser trailer for Diablo III. The final 45 seconds are backed up by Crowning Music of Awesome with a One-Woman Wail while clips are shown of the Legions of the Burning Hells, Tyrael destroying the Worldstone, a meteor coming down on the cathedral, all of the rapid-fire clips ending by showing Diablo himself standing amid a storm of flame, roaring at the camera.
• This video shows the CMOA of the Angels of Heaven fight the demons.
• The Diablo-possessed Leah utters a terrifying but epic line when he/she/it stands in front of the gates of the Silver City.

Leablo: Even in the heart of Heaven... Angels can still feel fear.

• While very brief, the entire battle between Diablo and Imperius. By far one of Blizzard's best cinematic battles to date.
• Tyrael fearlessly calling Imperius, the Archangel of Valor, out on being a coward during his trial for helping Sanctuary.

Tyrael: All I am guilty of Imperius, is bringing Justice! While you hide, cowering behind your throne!

• • Then he willingly strips himself of his angelhood to stand with the humans. Lots of supernatural beings like to argue Humans Are Special, but Tyrael puts his money where his mouth is.
• While every Diablo game has your character becoming a hardcore Demon Slaying Badass capable of singlehandedly laying waste to thousands of demons in a manner that would do Guts, Dante and the Doomguy seriously proud, taking back Heaven itself from Diablo and his demons is a Crowning Moment of Awesome in every definition of the term.