The word " best " is an adjective, and adjectives do not take articles by themselves. Because the noun car is modified by the superlative adjective best , and because this makes the noun car definite in this context, we use the . It is best not to do something. Here, we have the adjective best , but this adjective is attached to no noun. best wishes to you：我真诚的祝福你，祝福您； best wishes to：给。。。。最好的祝福； 例句:Please convey my best wishes to him. 请向他转达我最美好的祝愿！ I give my best wishes to you: my dear friends! 我真诚的祝福你：朋友！ I send my best wishes to asian americans and pacific islanders, and all who celebratethe lunar new year across the united states and around the world. 我谨向亚裔美国人和太平洋岛屿居民以及全球所有 ... "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. In the following sentence, however, best is an adjective: "What was best ?" If we insert the word the , we get a noun phrase, the best . You could certainly declare that after comparing a number of things, you found that a particular one of those things was the best . That is to say, it was better than any of the others.
