I joined them with Saints Row 3 back in the day and enjoyed 4/GOH.
I even played AND platinumed Agents of Mayhem (Depression can make you do weird things man)
But my favorite game from them will always be Red Faction Guerilla. To this day the destruction in that game still hasnt been rivaled in the AAA console market (if it has please point me in the right direction).
The gameplay was simple but the destruction added so much fun to it. Even the multiplayer had some crazy moments only possible due to those physics. I even got to the Ostrich Hammer playing in the og xbox 360 lobbies.
RIP Volition, I wish every employee the best