The problem with voting is that everyone has their own biased scale. I used to write for an e-zine that had a well-defined 1 to 10 scale for albums that was strictly enforced. You couldn't give out a 10 unless you truly felt an album was revolutionary. Average stuff would be around a 5. The editor would read the reviews and had listened to all of the music to be able to make sure that the person was using the scale properly, based on the ideas and opinions they expressed in their review. I once wanted to give an album a 10, but because I had mentioned a performance flaw on one of the songs, the editor said that it should not be a 10. Anyway, this was a big rant and my point is more or less that in an unstructured voting system, there's bound to be a lot of inconsistency and bias.