It would seem this classic needs an update:
Old Version
Here is a hierarchy of training for mass from greater to lesser efficacy:
1. Bodybuilding on steroids
2. CrossFitting on steroids
3. CrossFitting without steroids
4. Bodybuilding without steroids
New Version
0. CrossFitting on fish oil
1. Bodybuilding on steroids
2. CrossFitting on steroids
3. CrossFitting without steroids
4. Bodybuilding without steroids
http://www.crossfit.com/cf-info/faq.html#General4