They are all biographies of Chen Taiji, and of course they are exactly the same in the basic routine and boxing framework. The difference is that everyone's understanding, emphasis and background of Tai Ji Chuan are different, which makes them slightly different in some external performances. After all, Tai Ji Chuan talked about "guiding qi with intention, transporting the body with qi, and promoting the exterior with internal qi". "All this is meaning, not external" ... so cultivating "inner" is the essence of Tai Ji Chuan. You can choose the boxing frame that suits you according to your preferences and physical condition. As long as you practice properly (according to the requirements of Taiji Chuan under the guidance of the master) and persevere, you will succeed one day!