Although I have read about both methods and believe they both have great suggestions, I currently don't suscribe to either on my girls and have yet to try out the methods. You have to know what's best for YOU and what works for YOUR hair!
This is just for information purposes and I simply want to inform my readers of the difference and hopefully help someone. :o)
This post is extremely helpful (a chart is also included)...
The Tightly Curly Method vs. The Curly Girl Method
Here are some other helpful resources