1. Haurchefant.
2. Count Edmont's grief.
3. Y'shtola's rebirth -- a little bit during both the moment and the recovery conversation.
+ Plus I think I said aloud "OH MY GOD" at the appearance of the new Garlean juggernaut, or Haurchefant's death, or something else. Special nod to all the moments where I felt really, really angry, like just unleashing fury upon the Ascians and Heaven's Ward at the end.
I also felt really, really sad upon hearing the story of Ratatoskr and seeing Tiamat withering away in her binds.