A "favourite games list" is a feature that we have been thinking about ourselves, and have scheduled it to be added in a coming release.

Interesting idea to automatically start the next game in your favourites list - we could tie this into the option to automatically start a new game, ie have a new option in the preferences like this:

After you win a game, do this:
o  Do not start a new game automatically
o  Start a new game of the same type
o  Start a new game chosen at random from all games
o  Start a new game chosen at random from your Favourites

How about that?