"Childish", "puerile" and "juvenile" which is more derogative?

In order to scorn someone's behaviour, excuse etc., we can define it as childish or puerile, juvenile. In my register, they are graded down in that order. Is it right, or is there any difference in meaning or connotation?

Eg.,

"That was a rather childish/ puerile excuse."

Solution 1:

Childish is primarily neutral, with a secondary meaning that is pejorative: "silly and immature". Puerile is pejorative per se, with no "respectable" sense of use. Juvenile, like childish is first and foremost a neutral term, with a mildly derogatory secondary meaning.

That puts them in the order: juvenile, childish and puerile in the degree of increasing derogatoriness.

Ref: ODOL

Solution 2:

Puerile is highly insulting, juvenile is somewhat less so and childish not quite so bad. If someone is using British/Australian English and calls you puerile, they probably consider your behavior somewhat repugnant.