Each fight style has many different stats. The idea is that no one style is the best but using them means you have to play the game in a different way.
The table below shows the different stats for each style:
Note: Accuracy Bias is how wide the swipe path is when you attack.
Hopefully this will give an insight into the strengths and weaknesses of each style, and more importantly how to deal with somebody using a different style to you.
For example, Ninja style is very powerful in the early game, however you can see that their ability to counter is severely limited. This opens up the opportunity to launch more attacking moves than you normally would. Not only will this build your Adrenaline quicker giving you access to better cards, some may even land and cause a disproportional amount of damage due to the weak bodies of a Ninja user.