I thought Ajahn Brahmali acquitted himself quite well. He took a Sutta based position, and for my money, that's a safe position to argue from. Reject rebirth? OK, but don't call yourself a "Buddhist," or "Gautamist." To S. Batchelor's credit, he claims he has an open mind concerning rebirth and other aspects of the Pali Sutta teachings, and for that, he gets props. To be absolutist, fundamentalist, or blind to the possibility of further evidence is neither good science or good professorial sense, and SB ends with that kind of sensibility, though his books have sold based on an agnostic ("secular Buddhism") premise that rejects some core teachings of the Buddha. Ajahn Brahmali won't sell as many books, but he's selling good old fashioned salt, while SB sells cotton candy.
At the end of the day, how we feel about this debate is something of a litmus test for our own biases on these issues.