The transformations stand out being moments of awesome by itself.
The 2002 video game
The 2011 prequel
Kate's test, the Transformations (mixed of course with High Octane Nightmare Fuel, when Kate figures out Carter isn't human.
The final showdown between Kate and Sander!Thing on board the spacecraft had this troper gleefully screaming "DODONGO DISLIKES SMOKE!" (Internally. It was a packed theater.)
Lars. The man is a walking crowning moment of awesome.