Not sure what do you mean by "real-time" projects.
They all offer about same set of different UI components, and allowing different levels of customization.
But to be honest, good UI isn't how "flashy" it looks, it how usable and understandable it is.
And in someways, how you organize and layout your UI basically will determine how beautiful your UI look, since ultimately these libraries just gives you a consistent set of smaller individual components for you to put them together.