It would be SO3 if we could play the campain in multiplayer :/
I liked the first SoM, because it was a multiplayer RPG. I also like to play RotK with my friend. Attacking the Black Gates in Co-op is very cool Halo co-op campain was very cool too on X-Box. SHAME ON Microoft for not putting it in the PC version Booooo
I like Revenge of The Sith Humorous Version the best because it is just so hilarious.
Some examples are the Battle Over Coruscant (peep through the keyhole),
Order 71, the ineptitude of the Clown Troopers against Jedi, the hilairity of the end fight sene between so many combatants, the familial ties revelations, and more. The sending presents gags are also very funny and anything involving peas.
I also really like the Deliverance Humorous Version because I see Deliverance as a classic and I think its a really good adaptation.