I enjoy Oceania on the “O” class ships more than Viking. I find the food especially in the specialty restaurants much better than Viking. As I do mostly TAs I love the Culinary Center and Artist Loft on Oceania. I haven’t done solo on Viking yet but on my Oceania cruises there have been many opportunities for solos to meet. The Butlers on Oceania are fantastic and the ability to order from the specialty restaurants, penthouse suites and above, made dining in my suite very enjoyable. That said I enjoyed my cruises on Viking very much and have another Viking cruise booked. In many other areas I find them comparable so my choice comes down to itinerary and if that’s equal I go with Oceania.