So here are the questions - is PZ right to be so confident?
I should think it would be fairly easy to score a rhetorical victory; the creationists will have enough problems trying to find someone who can pronounce all the long words; knowing the science would be beyond them. So an obvious tactic would be to ask them to elaborate on any given point; for example, to ask them in what way the cleavage pattern of mammals differs from that of reptiles. And then ... "So you can't think of a
single difference between them? But you were just telling us how very different they were were."
But I'm sure that there are many ways to mock someone who is prepared to read in public a statement claiming that gills are homologous to lungs, and that "all observed developmental mutations that might lead to macroevolution (besides the loss of an unused structure) are harmful or fatal".