my 2 biggest complaints so far:
1. i just cant fathom that discworld 2 is on the list but discworld 1 was ruled out. The first was a better adventure game in every sense of the word.. it has better puzzles, a cohesive plot, and much more exploration. The sequel has... songs, and more puns.
2. counting "infocom games" as an entry really bugs me
You might as well put a spot in for "really old sierra games" for someone that cant be bothered to play all of the old ones.