I can see how you are torn. We have taken our kids....ages 5, 8 and 10 on a couple of cruises over the last couple years. Unfortunately, due to the cost, we decided against Disney's cruise...although I'd love to try it.
We have gone on
Royal Caribbean's Navigator of the Seas with the kids and they are still talking about it. THEY LOVED IT!!! The ship itself is gorgeous and there are tons of activities for the kids. They took ice skating lessons and my oldest tried the rock climbing wall. They also did inline skating and played mini golf....all in addition to the parties and festivities that are planned by the kids club. One night they had a pirate parade where the kids had their faces painted, made their own bandanas to wear and took over the ship. Very cute. We were very surprised, because my kids who were 3, 6 and 8 at the time did not want to leave the kids club. Even the little one who was in a separate group by herself than the other two were begging to go. We were amazed and actually had to say no a few times so we could spend time together as a family. Never thought that would happen with our kids.
Have also done the Carnival Victory with them. They had fun, but not as much as on the Navigator.
If you do decide on Royal Caribbean, I would suggest one of their "Voyager" Class ships ....Mariner of the Seas, Explorer, Liberty, Voyager, Navigator or Freedom. They are wonderful for families.
Also....another thing we loved was that you can get 2 adjoining cabins for your family for only a little more than cramming into one. You just leave the door open in between. This worked out great with the extra space and bathroom alone. We chose Promenade cabins that overlooked the Royal Promenade which the kids loved. I think overall it cost us less than $200 more to have the second cabin.
As I mentioned, I'd love to go on a
Disney cruise. But when we were looking, the price was almost $7,500 for a week whereas Royal Caribbean cost us less than $4000 for all 5 of us. That is a big difference to us and allowed us to tack on an extra week at Disney World after the cruise. This was also over President's Week so I think the price was higher than too.
Whatever you decide, will be wonderful!!! Hope this helps you a little bit.
Have fun with your planning!!
HeatherC