Which Varadero, Cuba resort is better? Melia Las Americas or Iberostar Laguna Azul?

My boyfriend and I are 23 and 24 years old. We are looking to go away the first week of September and are interested in going to Cuba. The two 5 star resorts that keep on popping up for us on travel websites are the Melia Las Americas and the Iberostar Laguna Azul. Has anyone been to both (or at least one) and which would you reccommend?