Libraries/Frameworks all have one goal: Use abstraction to allow you to spend more time developing the features of your application
With this, we are not here to judge or say which library is "better" as that is not a feasible question to answer. So what we can offer is a chart to show you what each library has to offer in terms of things it will help abstracts for you
X -> Supports features
Supports adding 2D images or sprites as a 2D element.
Supports adding text into the scene as a 2D element.
Supports animation of models.
Supports loading in audio.
Supports exporting models or scenes to file or other formats.
Supports importing of 3D models and/or images.
Supports with all the fun matrix and vector math.
Supports modeling 3D objects.
Supports showing or using point cloud data.
Supports a physics engine for simulation.
Supports advance features for rendering.
Supports creating your own shaders for use in project.
Supports adding textures to models and materials.
Supports the ability to be display WebVR on mobile devices.