Which is better, Norwegian's Haven or MSC's Yacht Club?

Since our trip on the MSC Seaside, this has been the most asked question and I can understand why. They both look similar but which cruise line does it better? In my opinion, after sailing on the MSC Seaside, MSC does the "hotel in a hotel" experience the best and the Seaside has quickly become my favorite ship of 2018. Don't get me wrong, we LOVE the Haven (we have sailed with NCL 16 times) and there are some areas where the Haven shines but keep reading if you want to see why I think the Yacht Club does suite level the best...