I want to make a parkour style game on which editor is better?

Question

Unity

Where is it better to do it, on unity or UE4?

Answer 1

Which one you know more about and do it.
If you are a beginner, then Unity will be easier.

Answer 2

You can use any engine, for animations in Unity and in UE, the functionality is almost the same, but to create them, I would advise you to consider the Stuntman.