I played and still love many of the LucasArts adventure games: Sam & Max Hit the Road, Day of the Tentacle, Full Throttle, Indiana Jones and the Fate of Atlantis, Grim Fandango. But the game which still holds the biggest emotional resonance for me all these years later is Gabriel Knight II: The Beast Within. Maybe there's just something about the full motion video format that allowed me to identify more with the characters or something, but I still find myself replaying scenes from it in my head every now and then. Robert Holmes's score added so much to it (and even the non-FMV predecessor) as well.

The X-Wing series were definitely hands down the best arcade flight sims though.