I like that the drop down box matches however you have your main page set up. However, I too miss the ability to use the drop down box to see what games most recently came back to my list..(to play them right away, assuming the person is still online and will maybe make yet another move, too)
The perfect solution would be if somehow the main page could be sorted in that way, then the drop down box could again too..
This of course, would mean another column on the main page (amount of time it's been your turn, maybe?).. and Fencer may not want another column?

The other solution maybe, would be to have someplace in Settings where you can choose, "Have drop down box sorted the old way, of being in the order in which they appeared on your main page" (less wordy than that of course! lol)..

just some thoughts..