Definitely maining the Dynamic duo.
That said, I think it'd be a smarter idea to wait until the game drops, because it's guaranteed to have more art and awesome shots of them that might make for better shirts.
Cheering him on? Terra is coaching him in Lackey(hence why it's literally called "Lackey"), and commanding him in Vicious and Ruthless.
She even stabs him to make him fight harder. They have a move called the "Boss Toss" in which he tosses her, the boss.
Of course they work as a team, but he's large and she's clearly in charge.
