Really interesting .... and you are right about the time issue: two weeks would be much better to do this testing process justice. I am not too surprised that the WTB saddle did well. I tried one of its cousins (the PURE V) recently and have been very impressed with it.

And +1 on long rides being important... Fizik Arione is an example: it was a good saddle for me for one hour or so but then it goes away. I think I can ride anthing for 20 miles... but then we find out what is what. If you get the chance, post pics of your finalists.