Best games? Check. Now...what's the best FPS?

Some of you already posted your thoughts on the 5 best games ever made on an earlier entry - if you haven't done that already, please go ahead and do so now.

If you've already done it, let's focus your thinking a bit - what is the best FPS ever, with some detailed rationale? Don't let the fact that you love a game NOW (COD 2 anyone) cloud your judgement, although I think that one is definitely in the running in my mind...

Wow...very interesting COD 2 article...

In helping students look at research paper topics (yep, seriously), I stumbled across this article...very, VERY interesting story about COD 2 and the ethics behind it...give it a read, leave some comments. Video games, my friends, are changing.

Check out the article here.

Best games?

There are literally hundreds of awesome games out there, from the earliest NES titles to the latest PS3 and 360 ones...so, what do you think are the 5 best games EVER MADE, with some reasoning for EACH choice?