Writing supplement prompt is the same as what I wrote my common app essay on.

So I’m applying to a university with the common app, and like the title says, the required additional writing question is virtually identical to what I wrote my common app essay on (except the question has a 250 word limit). Do you think it would look bad to have a very similar response for both of these? I could rewrite it with a different answer, but it would be much less passionate and representative of me.

Yes I think it would be a negative to have a similar response.

Instead, I think you need to take a unique approach. You want to use all the opportunities available to show different aspects of yourself.

If you have colleges like Northwestern on your list, show them you can provide additional insight into who you are. Don’t make them re-read the same tale and wonder what effort- and understanding- you put into this.