I train under a Machado school and my friend trains under a Gracie school. I noticed when I roll with him that the style we are being taught is a different. For example, the school I attend focuses on butterfly guard and sweeps and the school where he trains focuses on closed guard submission.
We almost like to keep open guard the whole time and work sweeps and submissions for all different types of guards when they almost just want to pull the opponent and trap him between their legs to work that submission.
I also noticed the vast difference in style between the likes of Roger and Kron Gracie and others like Marcelo, Saulo and Viera.
I am wondering if there are some major style difference between the "Gracie way" and other BJJ schools of thoughts.