Games finished

This is an interesting suggestion. As a practical matter, an apparently large percentage of games actually begun by active human player are not played to completion. From my personal experience, something like 25 to 50% of all human players go inactive in the first week to 10 days of a typical game. Some of those briefly active players have fairly extensive statistical experience, and are listed as playing dozens if not hundreds of games. It would certainly be interesting to see what percentage of games are played to completion overall, and for individual players.

The principle is good, but there are many instances when this stat is very arbitrary.

For example, on the 100p map, I don't hold it against anyone if they went inactive after being defeated, while still holding like 10 provs in some remote region...

Another example, I archived several 22p maps if I had basically won, but there were still a few people left, and they were still logging in but too lame to press the "Retire" button and I didn't feel like setting up an expedition army to go to places like Quebec and Kars...