"Which one is the best" is obviously a question format, so it makes sense that " which one the best is " should be the correct form. This is very good instinct, and you could even argue that the grammar is good, but at best it's unnatural.
When using the word " which " is it necessary to still use " one " after asking a question or do " which " and " which one " have the same meaning? Where do you draw the line on the difference between " which " and " which one " when asking a question that involves more than one answer?
Newsday: Updated U.S. citizenship test to have more questions, require more correct answers
The Trump administration is increasing the number of civics test questions that prospective American citizens could be asked to be naturalized, the latest move by his government to tighten the ...
Updated U.S. citizenship test to have more questions, require more correct answers
The U.S. government is adding more questions to the civics test that applicants need to pass to become American citizens, the latest step by the Trump administration to tighten the legal immigration ...
Yahoo: Census Bureau plans to use survey with a citizenship question in its test for 2030, alarming experts
ORLANDO, Fla. (AP) — The U.S. Census Bureau plans to use a survey form with a citizenship question as part of its practice test of the 2030 census, raising questions about whether the Trump ...