Contradictions in the Gospels

This is the opening gambit in my debate with Rev. Matthew Firth on whether there are contradictions in the Gospels.  I believe there are many.  He believes there are none whatsoever.  So who is right?   I would strongly recommend that, if you are really interested in the matter, you actually look up the passages in question and see for yourself.

I will need to be brief on each one, since space is highly restricted.  I ended up requiring 1300 words, and so obviously Rev. Firth can follow suit....