As for my choice between the two courses,I prefer the four-w

As for my choice between the two courses,这部分是介词短语结构,不是句子,语法是伴随状语
比如,as for you,you'd better be quick.至于你,你最好快点.
不要只看as,是as for,就什么而言
如果变成,as my choice between the two courses is concerned,就是非限定性定语从句
如果是my choice as between the two courses,那as是虽然,用倒装

如果要在这两种课之间做选择的话，我更喜欢那个4周60个小时的课程。

在这两个课程之中，我更喜欢4周60个小时的那个课程。