Just curious. Haven't played 10/10/10 yet, and I'm wondering how much time do you guys use for a game like that, so I can decide when will be an apropiate time to play a 10 game. ^^

I've played several games in 10/10/10 and they last around 2 to 3 hours. The 6/6/6 format last between 45 minutes to 90 minutes (45 if one player armies is decimated early). But we took time to think twice before activating some units we don't know very well.

EDIT : Just a complement to my previous answer. The 10/10/10 game allow some armies to set up some combos which are not quite effective in smaller formats (like Capitol Ranger full army or Brotherhood Inquisitor full army). And the victory zone tokens change lot of things during Tournament games.