When I read general recommendations on how to choose a PhD programme/advisor, it seems that many academics agree that one of the most important factors is the reputation of the advisor.
Next year, I may have the opportunity to undertake a PhD under the supervision of a "superstar" faculty who is considered an authority in his field. However, the professor in question recently moved to a university where the official language of instruction is one that I don't speak (though I would be allowed to write my thesis in english), and thus I would most likely not be able to gain teaching experience during this time.
Now, most job offers for postdoctoral or tenure-track professor positions that I see advertised online require a teaching statement and that one of the letters of recommendation address the teaching ability of the candidate.
In light of this, my question is the following: Is teaching experience for entry level academic jobs so important that it is always better to have a fair amount of it while completing a PhD no matter how well-reputed your potential supervisor could be?