If I was gonna create two teams of Avengers, I'd make it for the US & Europe rather than East/West coast!

They could really make it a Euro international team, without overloading it with American members or making up new characters.

I'd go with Captain Britain as team leader by getting him back to how Alan Davis represented him before he joined Excalibur (this of course would mirror the US team if Captain America was the leader).

I'd get Blitzkreig to represent Germany.

Hercules to represent Greece, and of course he is a legitimate Avenger.

Black Knight has a history in the UK, and with Cap Britain, so despite being a Yank, he would fit perfectly as the second legit Avenger!

For my first female member, I'd go with Irelands Siryn.

Second female would be Valkyrie for her Viking heritage!

I was thinking of Thor initially, but I think is make things a bit weird when you have a member based in a Euro team who has their own book, which is based in the USA!
Creates all kinda conflicts!
Plus I needed more females on the team, and Herc and Thor are too similar!

Of course they could throw in someone like Quicksilver as well, as he has Romanian roots!