Australia 3 Japan 1 - just in case you missed it
A few more games have joined the list since last post, including Physicus, Ankh, Armed and Delerious and Azreals Tear. 2 games have been mentioned I have never heard of - must look them up.
As far as series go, all of the Myst games continue to rate well, though the earlier ones continue to outrate the later ones, and 8 of the Nancy Drew games have been mentioned. All 3 games in each of the Broken Sword, Gabriel Knight and Journeyman Project series have rated mentions. Though nothing to do with the list, the Atlantis series continues to be the most confusingly named series of games ever marketed.