The problem with alexa stats are that they are generated by people who have the Alexa toolbar installed. This tends to be a webmaster/tech savvy type userbase so some sites rank statistically higher than they should.
For example they rate wickedfire higher than 2+2
http://www.alexa.com/data/details/tr...wickedfire.com
That's because a larger majority of users at wickedfire would have the alexa toolbar installed. WF - Most users ever online was 219, 01-26-2007 at 04:16 PM. I doubt 2+2 ever goes below 219. Heck I doubt OOT ever goes below 219 lol.