Jane and Cliff taking on von Fuchs's army is gloriously awesome. Especially when Silver Tongue gets involved, and starts carving up the Nazis with her weaponized words.
Vic and Kipling defending the house from the assassins from Nurnheim, who explode into letters upon being struck. Especially the great moment between the two preceeding the fight.
Cyborg: (activates hand cannon, looks at Kipling) Science.
Kipling: (nods and pulls out a flaming sword) Magic.
When Kipling tries to kill Elliot in a moment of desperation, Rita spontaneously develops her stretching powers to slam him against a wall.
Jane finally facing down the gigantic monster of her abusive father, screaming at him that shes not afraid of him anymore and causing him to disintegrate. What makes it especially awesome is that what prompts her to do this is simple empathy: hes just torn Cliff in half (which hasnt actually killed Cliff but is still cruel) and her anger at her friend being mutilated overcomes her terror of her father.
Mr. Nobody expects a big fight, and yet Dr. Harrison appears, and calmly takes him apart piece by piece of why he had become who he was.
After an entire season of Mr. Nobody literally controlling the narrative, Rita manages to completely undermine it by narrating her own story and reuniting with the rest of the patrol in the White Space.
On a meta level, it's very bold of the writers to keep the twist of The Chief being the cause of their abilities.