Most Impressive thing another persons character did? I think it would have to be the entire group's play during a Beasts and Barbarians game run by +JC Locke.
We started off the game as prisoners to be sacrificed in an arena to the scorpion god of some cult. From the get go the party took it too those pesky cultists (okay, really the sorcerer went hid behind the biggest pillar he could find)
+Skip Voyer, +Matt Stark, +Lan Kelly +Eric Lamoureux and +Daniel McLaughlin
Hopefully we get to play some more of this!
Recorded session here