"best considers" is a correct and usable phrase in written English. It is used to emphasize the most important considerations which should be taken into account when making a decision. For example, "When selecting a contractor for the project, it is important to best consider their experience, reputation, and cost."
Various rankings contradict one another: according to Asia's 50 Best, Bangkok's Gaggan is the best restaurant in Asia, but the World's 50 Best considers it less good than Tokyo's Narisawa.
The system itself is best considered an untested hypothesis.
Is Singapore's Constitution best considered a legal constitution or a political constitution?
For everyone else, the new Aquos is best considered a technology demonstration, like a concept car.
Trump's condemnations of divisiveness are also best considered in a broader context.
* If you're not sure a particular school is best, consider early-action plans.
But experts say that Mr. Papademos is doing his best considering the situation he inherited.
Many bacteria both swim (like animals) and photosynthesize (like plants), yet they are best considered neither.
Perhaps its best considered gonzo science: opinionated and yet skeptical, informed and yet passionate.
Vuilleumier (1984), however, demonstrated that most of this variation is clinal and that the species is best considered to be monotypic.
As is reflected in the decisions of this Court, most speedy trial claims, therefore, are best considered only after the relevant facts have been developed at trial.
Being a terminologist, I care about word choice. Ludwig simply helps me pick the best words for any translation. Five stars!
Maria Pia Montoro
Terminologist and Q/A Analyst @ Translation Centre for the Bodies of the European Union