Exactly! The FJ is all about fun....I have so much FUN driving the 6spd!!!
I'am just fishing for some opinions...
I enjoy driving my 6 M/T. It's a personal preference that you'll have to make. Any mileage issues/differences are neglible at best IMO, and drving style has a great deal more to do with any other issues.
Pick what you like and enjoy the ride/drive!