I was present in the audience at Purdue University when I became aware of and saw Dr. Craig for the first time.
I was impressed with the organization of his thought. Most of his ideas were presented using classic syllogistic argument, an extraordinarily transparent method. In other words, if, in retrospect, Dr. Rosenberg, or anyone for that matter, wanted to take the time and attack Dr. Craig point-by-point, then Dr. Craig has made that opportunity for the critical thinker to do so in the clearest way possible, in my opinion.
What was equally impressive was Dr. Rosenberg's seeming lack of organization. I agree with previous posters to this forum that he almost immediately attacked Dr. Craig in an ad hominem fashion. Where Dr. Craig was direct, linear, and clear, Dr. Rosenberg was scattered, vague, and reaching for a foothold.
Dr. Craig won the debate in several categories: a) using a system of impartial judges, he won the debate on the merits of the process b) Dr. Craig won the debate from votes in the audience and c) Dr. Craig won the debate from voting online. That's a triple win.
I certainly hope that this doesn't represent Dr. Rosenberg's best work, but one would think that it should, since Dr. Craig spent a considerable amount of time disarticulating the arguments from Dr. Rosenberg's own book.
Dr. Alexander Rosenberg is the Department Chair and the R Taylor Cole Professor of Philosophy at Duke University. According to Duke's website, he has secondary positions in the department of biology and political science. In other words, a committee has selected Dr. Rosenberg for his position and the endowed chair means that a foundation or family has given money to be paid to Dr. Rosenberg as extra money for assuming this position. As such, he has declared himself an expert on the use of language in presenting his arguments.
As an example of Dr. Alexander Rosenberg's work, I would give Dr. Alexander Rosenberg a failing grade, and were I a member of the committee which makes decisions on whether he is to remain as department chair, I would begin the process to have him removed from that position.