How does word choice differ from creative writing

In word choice you get options to choose from and in creative writing you right about what you want instead of having choices to decide if its write or wrong.

In fiction, you would like to give variety to your word choices. In formal business or academic writing, You want to prevent ambiguity and so may use the same word again and again to make your meaning clear. For example "contract" might be used repeatedly rather than along with some synonyms for it.