I was mildly amused by all of them.
I can understand why you were offended by the Bin Laden/Old Glory picture. And I guess the amusement I felt here was because the representation of both man and flag were outrageous.
The same applies to the Mohammed drawings.
I tried to imagine the same representation on the Union Jack, and I was unmoved by the thought. I also tried to imagine Jesus in a soldier's uniform patrolling an occupied country, and although it was incongruous, I didn't feel there was anything wrong with the image if you wanted to use it to make a point.
I actually thought the Last Supper picture was clever, good natured and well presented. it appealed to me much more than the other two because it really was funny.