Amber Rose vs Kim Kardashian:Who rocked it better?

Amber Rose is pregnant and now enjoying a sweet romance with Wiz Khalifa. She stepped out in the dress to her first official outing with Wiz Khalifa, after the couple announced Amber's pregnancy.
Kim K was also spotted in the same dress with Kanye West after they officially announced Kim’s pregnancy.Some insinuate that Kim is stylishly copying Amber Rose, while some say its co-incidental.
 who rocked it better? Amber or Kim?