For wargaming, I cheat with ASL, which is the new, shiny addition to my collection that makes PG feel left out and jealous. I also intend to cheat with Great War At Sea some time, but time/space are big issues here.
For FtF play, I have a choice of Monopoly, with my girlfriend's insane house rules, or Montego Bay, where I usually draw cards at random and upset the applecart as much as possible. One day, she will play PG with me...