IGN has just published their 2005 list of top 100 games. It's a great list, well written, with lots of interesting editorial choices. It's also hard to understand the whole list because of the article format. So I created a version of their list in CSV form as well as an HTML table. The table has the tablesort magic, click column headers to resort. Interesting to group by year, or publisher, or platform.
IGN is a great publication, you should definitely go visit their article. Their list includes box art and interesting editorial comments on each game. I'm only providing this list as a simple index into their articles.