I think Zakir Hussain is going to be a popular debater. He's only started debating recently, but he's got three essential requirements for debate: (1) he's a confident communicator, (2) he studies his material, and (3) he doesn't panic when arguments are thrown at him. He'll obviously develop his abilities further as he builds on his experience.
In this debate, we discuss God's covenant with Abraham and the role of Ishmael in God's promises to Abraham.