I need to create a poll that is to create a ranking list of items in order of how good they are. I intend to show each user two items together and make them choose one which they think is better, and repeat the process multiple times over. It is sort of similar to what you could see in the Social Network movie. How should I be ranking the items based on the received answers?
Answer
Look at the ELO chess rating system if you want something fancy.