Yukon + Denali Tour or Double Denali?

My fiancé and I are in the process of planning a cruise to Alaska and are exploring our options! After researching, we find ourselves debating between two choices: the 11-Day Double Denali Tour R6l (NOORDAM) or the 13-Day Yukon+denali Tour R4l (KONINGSDAM). We have heard good things about both the Yukon and cruising the Hubbard Glacier, but they are features on different itineraries.

We would appreciate hearing about others' experiences with these specific ships and tours, as well as any recommendations for favorite activities or excursions. TIA!