The arena battle. Sure, the Jedi lose it but DAMN is it awesome!
Padme gets special mention because she is every definition of a Badass Normal. Unlocking her bindings, climbing to the top of her execution pillar, using the chain as a whip against the nexu, keeping on going even after she's been slashed in the back, and going to town with a stolen blaster rifle, which is meant to be wielded with two hands on account of it's clunkiness, from a battle droid.
After dropping a battleship from the sky, the Clones march headlong into a sandstorm blasting apart the disoriented droids.
Anakin jumping out of his 'stolen' speeder, and landing perfectly on Zam's.
After foiling the attempt on Padme's life, Obi-Wan sees the droid that brought those two poisonous critters to kill and immediately jumps through (not out, through) the window and grabs on so it doesn't get away.
In general, the entire chase scene following this is one long moment of awesome.
R2-D2 can fly. We knew he was a Do-Anything Robot, but who could have expected that he can fly!?