WHEW.... glad to hear that you didn't have something serious going on that would have changed your plans for the cruise! If sailing with another cruise line is being a traitor, I would imagine there are a number of us here on the group. Ed and I took a Princess cruise immediately before the Disney one to Alaska last month. It was wonderful.... but it was a different experience. I can't honestly say that I enjoyed one more than the other, but there are times I would choose Disney over Princess, and vice versa.
We have friends who only sail
Royal Caribbean. We tried to get them to come to Alaska with us on the Wonder, but no dice. They don't want to give up their perks for having sailed so many times with RC. If we hadn't taken the Princess cruise to Alaska on a whim.... we wanted to see more of the Alaska coast than the
Disney cruise allowed.... I would probably be just as adamant as our friends about sailing with Disney, because it was all I knew, and I would be looking to racking up cruises to get to the next level of the
Castaway Club. But now that I've tested the Princess waters, I wouldn't hesitate to sail with them again, and we will be in March when we go to the Caribbean

. Princess is more of an adult experience. There are children, but not a great number of them, and the cruise doesn't put primary focus on their entertainment. Food and service are fantastic, and the ship (Sapphire) was gorgeous.
That said, I can't imagine sailing with anyone but Disney if we are going on vacation with our kids and grandchildren. We're hoping to do that again in 2015, and it will definitely be on Disney! And as far as the Panama Canal cruise is concerned, we're eager to sail on the Wonder again.
I guess what I'm trying to say, in overly-wordy fashion, is that we don't have to be one-note Sambas. We can like more than one cruise line without saying one is better than the other. At least with the two I'm now familiar with, the each have their own attributes, and we may prefer one in a particular instance, and another when circumstances are different.
Have a fantastic time on your upcoming cruise! Three weeks..... how can you ever pack in time, lol. Where are you going?
As far as seats together on a plane... I don't know why you'd have to pay extra to sit together. Someone else might have a definitive answer. We fly Southwest when we can, and they have open seating. I don't know what the rationale would be to charge two people extra to sit together. But these days, who knows?
Karen