The problem in the US is that team-based tournaments are very rare
There are maybe 3-5 Team format tournaments a year in the whole US, compared with more than 100 individual tournaments.
I don't understand why - team tournaments are surely more fun and are better for the club in terms of building team spirit.
Anyway, at our North American Teams Championships, this is the format we have:
3 players, until 5 points, no doubles.
A1:B1
A2:B2
A3:B3
A2:B1
A1:B3
A3:B2
A2:B3
A3:B1
A1:B2
I think the main advantage of our system is that it only requires 3 players - many people will have problems finding enough players to make a 4-person team.
The reason we have no doubles is that we have MANY MANY matches to squeeze into 3 days, and doubles would just take up too much time and table-space.