Actually, Ross contacted Michael Shermer asking to debate him on a combination of Bible prophecy and Ross' assertion that Genesis 1, along with other verses of the Bible, show a (divine) awareness of Big Bang cosmology and that the sequence of creation events in Genesis 1, again divinely inspired, fit the sequence of events in the geological and fossil records. Michael initially proposed that both he and I debate Ross, but Ross said he only wanted to debate one person, and Michael decided to let me handle it.
I initially thought we would be going over prophecies of the fall of Babylon, Nineveh, Tyre and Egypt. However. Hugh Ross wanted to debate the Genesis 1 thing and the Book of Daniel.
Our debate on Daniel turned out to be almost exclusively about the date Daniel was written. He claims that the Aramaic used in Daniel was not the type used in the second century BCE.
I pointed out that the bad history, such as Babylon falling to "Darius the Mede", the use of the name Nebuchadnezzar as a opposed to Nebuchadrezzar, the reference to Nebuchadnezzar's astrologers as his "Chaldeans" all point to a later date of composition. We can pinpoint that date because the contemptible person of Daniel 11 is obviously the Seleucid emperor Antiochus Epiphanes. The description of his actions - conquering Egypt, being forced to give up that conquest by the Romans, and his plundering and desecration of the Temple - are correct up to and including his attack on the Temple in 167 BCE. However, his predicted death taking place somewhere west of Jerusalem is wrong. He died campaigning against the Parthians in Armenia in 164 BCE. Thus, Daniel had to have been written after he plundered the Temple in 167, but before his death in 164.
Ross responded that Darius the Mede was just another name for Cyrus and that he doubted that Daniel 11 necessarily referred to Antiochus Epiphanes.
All in all, it was a pretty good exchange. However, I don't think any minds were changed. I'll mention more as it occurs to me.