How to know if a Spanish page is equally important that the pages are in English?
I'm not sure I fully understand your question, so forgive me if the answer below is way off the mark
The ODP lists sites based on their content - If the site is translated completely into a language, ie. Spanish, it has equal importance to us as the English version.
We do not list machine translations of sites, either those made on the fly, or by copy/pasting.
If your question was about the SERP/SEO of a listing or directory page, we do not pay any attention to those aspects
at all so your question would be better in a webmaster forum.
