汉译英：这些女孩中,你最喜欢哪个呢?

Which one of these girls do you like the best?
因为有其中的意思，所以要用which one of.
the best 是对的。*，当然要加the.

Which of the girls do you like most / best ?
Of all the girls,which do you like best / most ?

which one do you like most among these girls?
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回来看看，那谁肯定还是初中生。。。
加了个the读起来好别扭啊
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原来修改答案以后会变到楼下去。。。

纠正楼上
which one do you like THE most among these girls?

表示“在某些同类的中间最如何的一个”要用 “ * + of 介词短语”结构,of 有时候常被误用为 among,这是错误的,因为 among 可以表示不属于同类的,如：
a village among hills 群山环抱的村庄
a dog among the children 在孩子们中间的一只狗
这个句子可以翻译为：
Which of the girls do you like most?
Of these girls,which one do you like most?
注意：这里的most是副词much的*,而复词*一般不用定冠词.

这些女孩中，你最喜欢哪个呢？
Of these girls,who do you like the best?

Which girl is your favourite of these few?