I've been asked to find out how people rank a long list of items. The list is such that about 80% of the population will have pretty strong feelings and make clear ranking among about 20% of the items. The rest of the 80% will be so randomly ranked, they might as well all be the same in terms of importance. I've determined that the best method is to use pairwise comparison testing as it's a common technique to force rankings.
I'm wondering if anyone has used any software that runs this test and, if so, what were your thoughts on the software.