Never underestimate just how close all of the rankings are. Usually anything outside of the top 5 or so will have its position altered by one vote. When I was close to finishing up this year's list, I noticed a mistake I made - I compiled one of Marvel's Spider-Man votes as a vote for the old PS1 Spider-Man game. It was only a #41 vote, but when I fixed it, it moved the game up 10 spots on the results - from #77 to #67.