Games : Which XBOX 360 compatibility list is most accurate?

So, I've been checking out a few Original XBOX games I want to buy. Problem is, not all of them are compatible with the XBOX 360 (Which I Have). I saw 3 lists online, but I don't know which one is the most accurate, as some games could me missing, or unknown if they can play on the 360.

List from a gamer called John Godgames, who is on YouTube: https://docs.google.com/spreadsheet/lv?key=0AnvKJhM9VQHqdDdHYlR1a01JSzhYTjFReXJNNFdPc0E&usp=sharing

List from Wikipedia (includes link to Official Microsoft list, which both have their share of missing games) http://en.wikipedia.org/wiki/List_of_Xbox_games_compatible_with_Xbox_360