The difference is The Shuffle bounces the entire body where the Zaouli bounces just the lower part of the body. Both are very impressive. Another impressive dancing is the Irish dance with focus on the Irish Stepdance. (Interesting history of the origins of that.) If you've some relaxation time available, here is a nice documentary that is sure to please people here.

https://www.youtube.com/watch?v=5G7nAjEVIwg