Having read the forward of each book, I think it might be helpful to summarize the main argument that each author will unfold in their book.
Calvinists are inconsistent because if they followed their system to it's logical ends, they would conclude that God is the author of evil, both natural and man-made (sin).
Arminians are inconsistent because if they followed their system to it's logical ends, they would conclude that salvation is works-based, i.e. not by God's grace alone.
Michael Horton puts it like this:
Roger thinks that if I followed Calvinism to its logical conclusions, I should concede that the Holocaust and natural disasters are caused directly by God and that those condemned on the last day could justly blame God rather than themselves...
On the other hand, I think that if Roger followed Arminianism to its logical conclusion, he should go on to deny that salvation is entirely of God's grace; that Arminianism leads inevitably to human-centered rather than God-centered convictions if followed consistently.
Obviously, neither group agrees that their system leads to these undesirable ends.
My initial reaction is that each system does seem to lead logically to the ends described by Horton. It's for this reason that it will be interesting to read the arguments laid out by each author.