Data Trumps Guesses

Jakob Nielson's Alertbox has been one of the best sites on web usability for many, many years. A recent post does a nice job of showing just how pointless it is to argue in a meeting about what design is probably the best.

testing just 2 users per design reduced the probability of being wrong from 50% to 24% — cutting it in half.

Quit debating what works and go gather DATA. Then, go where the data leads you. Anything else is examining chicken entrails.