"Que nadie" superlative

[wafflestomp]

Is this a commonly used superlative?

El es un cantante mejor que nadie

Soy mas alto que nadie

That type of stuff, is it common in Spanish?

[Rusty]

Very common, indeed.

[AngelicaDeAlquezar]

Yes. "Más (adjective) que nadie/nada" is very commonly used in Spanish.
It states that nothing/nobody can be compared to the subject.