We have been on both Oceania (Riviera) and Regent (Explorer and Grandeur) recently, and I have to agree with all the comments so far - very good info.
Only one comment I do not understand is the complaint about breakfast offerings at Regent buffet. Seems like more than enough choices for me!
Both have very good food and you should be pleased on either foodwise.
I must say that some of the choices in Oceania's Jacques and Red Ginger are truly memorable dishes.
Now for the food or life snobs out there. I do not care whether the pea vichyssoise or the sea bass in puff pastry is authentic French. I simply do not care if you lived in France and never saw such a dish. We enjoyed them, and that's what is important.
Also, my husband really feels that the duck watermellon salad on Oceania is far superior. He could give you many reasons. 😋