Here is the contrarian view: Get two queen beds.
Sleeping in a bed with another grown human animal is way over-rated. Sleep is too precious.
Not contrarian, but how's this compromise that DW and I do: Platform bed with 2 twin mattresses. I prefer mattress that is as soft as a slab of concrete, and DW prefers the opposite. This has been perfect for us.
Friends of our have separate bedrooms. On separate floors. They been married for 30 years so it works for them.
We have a queen but every time we stay in a hotel and get a king we love it. Our next mattress will be a king.
Friends of ours also sleep in separate bedrooms because of his snoring.