Favourite overall team is very hard to decide, so I'll split it down like others have.
Favourite Brit Team: Gotta be Nexus, kinda predictable but they are a really good bunch of guys who have done a heck of a lot for the UK scene in the states. Also their seminars and training days have helped many other teams to further their skills and become world class.
Favourite Euro Team: Joy Division (Stockholm).... Always entertaining to see at events, they play hard, play well and have a great sense of style......Nice guns too
Favourite Yank Team: Infamous.... I always used to be a Avalanche fanboy back in the day and it is great too see many of the old guys (like Lasoya) still being able to cut it in the modern game. I was a bit torn between them or XSV due to XSV's Ironmen roots but Infamous won out in the end due to their recent incredible performance