Eh, Nagase is good. Grimm is the best, he shoots down planes, but doesn't piss you off from talking to much like Chopper. Thank God he dies. The last level of 5 is REALLY good.
There are so many easter eggs in 5 and Zero. In the beginning of Ace Combat Zero where you are introduced to GALM squadron information at the bottom next to the GALM logo states 6th Air Division 66th Air force Unit, which if you put the three sixes together it forms 666 the devils number.This makes sense because later in the game GALM 1 (you) is called The Demon Lord." Very cool. Solo Wing probably has the coolest paint scheme on his plane, with the one red wing, but Schwarze, Rot, and Gelb have very cool ones too. I miss Ace Combat 5.

I sold it for Ace Combat 04. Still a classic.