An expert gamers episode would be nice, but I am more interested in a expert but not pro gamer approach to the topic. The difference between the game enjoyment of a normal gamer and a very good gamer can lead to some very interesting discussions.
What I mean by "expert but not pro" is someone like me: I can beat immortal/deity difficulty at civ, and I can crush most of my friends at an random RTS, but I don't come even close to a pro StarCraft or League of Legends player.
Also, I think Civ 4 will be eligible to a classic game analysis when the debate between which is the better game: "Civ 4 or Civ 5" is replaced by "Civ 5 or Civ 6"