adventure games:
Full Throttle, The Dig, Indiana Jones and the Fate of Atlantis, Day of the Tentacle, Manic Mansion, Sam and Max (all these Lucasarts games) Quest for Glory 1-4, Gabriel Knight 1-3, Conquest of Camelot, Conquest of the Longbow (Sierra games you didn't mention. Also their best) Captain Blood, Chamber of the Sci-Fi Mutant Priestesses, Leather Goddesses from Phobos, It came from the Desert, King of Chicago and the other Cinemaware games. Noctis, also. The Clue! too if you like planning burglaries.
RPG: Lands of Lore, EOB 3, ADOM, Wasteland, Fallout 1 and 2, Hired Guns, Captive, Wizardry series
Action: Warning Forever, Abuse, Adventures of Lomax, Out of this World, Flashback, Blackthorne, Prehistoric 1 + 2, N, Rootage.
Sports: TV Sports Boxing. Only. Nothing else.
That's at the top of my head. If you want I can look through my stuff for a more complete recommendation.