Escaping the D-District Prison because of its awesome soundtrack >>Only a Plank Between One and Perdition.
And immediately following this sequence, choosing the Missile Base Infiltration Team and Balamb Team.
(To be fair, the second disk was probably my most favorite. It's a non stop thrill ride. I'm always sad when that disk ends, haha.)

And finally: Esthar and Space!--- Because Love grows, har har.