Here's my list of Apple II favorites:

• Reader Rabbit (Leslie Grimm, the Learning Co.)
• Rocky's Boots (Warren Robinet, the Learning Co.)
• Carmen Sandiego (Brøderbünd)
• Oregon Trail (MECC)
• Music Construction Set (Will Harvey, Electronic Arts)
• Pinball Construction Set (Bill Budge, Budgeco/Electronic Arts)
• Leslie Grimm's Treehouse and Brøderbünd's Arthur series.

Oh yes, and of course:

• MasterType (Bruce Zweig, Lightning Software/Scarborough/etc)