I've done Disney and Celebrity cruises in the last few years, and there really is a Disney difference. Looking forward to hearing more of your comparisons.
The Disney cruise experience really is top notch. The big question is, is it superior enough to justify the huge price difference compared to other cruise lines?
Sadly, I have to say no, it is not worth it. I have done three Disney cruises on two different ships, all of various lengths, all out of Port Canaveral. The Disney Cruises are wonderful - but they are $$$$$.
We just did a 7 night Bermuda out of Bayonne NJ on the Celebrity Summit. Some quick comparisons.
1) The Celebrity ship was not as immaculate as Disney's - but it was by no means lacking. A spot of rust here, a bit of peeling varnish there, some brightwork that could use a shine. Nothing like part missing, or garbage. Just not quite the level of maintenance Disney does.
2) Food - the same on both ships. 90% of the dishes were great, 10% disappointed. Wait staff was wonderful on both, While you do not change dining rooms on Celebrity, the dining room itself is very nice.
3) Activities - both lines have many activities that are great. Celebrities stage musical shows are a notch below Disney's, but they also had some excellent comics, a very interesting "high tech" magician, and did a liars club show with members of the crew that was very funny.
4) Staff - The staff on both ships are great, Disney has that Disney level of service, but I cant complain about Celebrity;. from the bartender in the lounge before dinner every night who had a running joke with me about stealing snacks from behind the bar, to the pool attendants who would assist you in finding chairs, to the food service people who at lunch apologized for a made to order dish taking so long, asked where we were sitting by the pool, and then said "go sit down, I'll find you when it is ready" and brought me my food. The Thalassotherapary Pool on the Summit also a great area to relax. We did have one issue with the photography people on the Summit, but they did rectify it in the end.
5) Price - Disney is way more expensive. In addition, Celebrity was running a "pick two perks" promo. We got all gratuities included, and all beverages (alcohol as well) included) and the fare was still less that Disney's. Sailing out of Bayonne saves me a bundle on airfare, but I cant really fault Disney for that - they cant schedule their cruises for my convenience, now can they.
So, to summarize, I think Disney is a "better' cruise line on a few points, but by no means is Celebrity lacking, and in some points is better than Disney. I will most likely go on an other Disney cruise, just because I enjoy them. But for value, I really feel Celebrity is a much better value.
-dave