Winners so far:
Round 1: Avendar with Lion-o
Round 2: Freija with Aang
Now for Round 3!
Player 1 - Malaki. Character, Aang.
Strategy: Obviously I'd pick Aang cause he's the master of all four elements. I'd definitely use his bender ability to full advantage with some cheeky tricks.
Player 2 - Bree. Character, Korra.
Strategy: I'd have Korra try to engage just one at a time avoiding combat otherwise, unless she can catch multiple in an area-of-attack or crowd control move.
Player 3 - Torolf. Character, Goliath.
Strategy: I'd tell Goliath to use his flight advantage to attack from many angles and keep opponents off guard. And where possible get adversaries in each others way.
Player 4 - Raynor. Character, Finn.
Strategy: Run around with his sword with mocking his opponents.