Grim Fandango
Discworld Noir
Monkey Island 2

Best plot - Gabriel Knight - Sins of the Fathers
Runner up - Indiana Jones and the Fate of Atlantis
Honourable mention - Full Throttle

Best jokes - Monkey Island 1/2
Runner up - Sam and Max Hit the Road
Honourable mention - Day of the Tentacle

Best puzzles - Day of the Tentacle
Runner up - Monkey Island 1/2 (I just can't seperate those two)
Honourable mention - Sam and Max Hit the Road

It should be noted that I am still halfway through Grim Fandango and Discworld Noir, and I havent even started The Longest Journey.

oh how could I forget discworld noir!?
shame on me!

The game that introduced me to discworld (of which I now own the entire series and the last 6 books in hardcover)

Sam & Max and Full Throttle are nice games :) but maybe not the best ever...

Yes, shame on you :P

It introduced me to Discworld as well, I have read them all and between me and my school's library I can read them all. For me Monkey Island 2 is the best of the series, I liked the money system and the freedom of movement between islands.

Btw, I have completed Discworld Noir seven times, Monkey Island 2 three times and Grim Fandango twice.

I completed Discworld Noir 2 times and Grim fandango 3 times

Sadly a bug prevents me from playing Discworld Noir on windowsXP :(

Stroggy, if its the bug I'm thinking of you can bypass it simply by starting a new game every time you play, then loading your savegame after the intro. Let me know if it works!

no
i just can't start the game up at all :(

Works fine on XP for me :unsure:

More or less there are several adventures that keep repeating. I'm also adventure fan, started with textual adventures on C64. Well, then I got a magazine where I read aboout Shadow of the Comet and Alone in the Dark 1 & 2 (rewiews and complete walkhthroughs). I thnik I read walkthrough of Shadow about 100 times. Years later I found a game. I think they gave it mark 8 for overall but they also gave ut 10 for scenario. Meanwhile I also played Lucas adventures and liked them very much (you already named them all :) )
Well, I hope Kosta will upload Shadow soon, so see for yourself is it really worth talking.