Kira coming out unscratched from the destruction of the Freedom Gundam with the handwave that Kira had shut down the nuclear reactor before it blew up. At least when Athrun nearly got killed by Shinn (in the same way Kira nearly did), he was half-dead for a few episodes. Kira was fine and dandy at his next appearance.
"I was confused about whether I should...be fighting against ZAFT, so I hesitated." — Kira