We cruised on Celebrity's Galaxy in 2001 when my wife was pregnant with our first child. Then we went on Disney Magic with our daughter in 2002. Both were terrific vacations, and we're going on the Magic again in October because we love to watch our daughter get so excited with Mickey and the other characters (my wife also loves the characters). She lights up now every time she watches the
DCL video (she's seen it at least 50 times now). HOWEVER, our trip on the Galaxy will go down as one of my favorite vacations of all time for these reasons:
1) very romantic, especially as we celebrated our final vacation w/o kids. There were few children and we enjoyed laying around the pool (indoor and outdoor pools). There were very few children around and a lot of couples.
2) great ports. In one 7 day cruise, we saw San Juan, St. Croix, St. Thomas, St. Lucia and Barbados. Great for those that love excursions, beaches and port intensive itineraries (w/DCL, the being onboard is the highlight of the cruise. w/Celebrity, ports were our favorite part).
3) the spa. My wife had the best massage ever on Celebrity--may have been because she was nearly 7 mos. pregnant and her back hurt, but she never had any more back pain the rest of her pregnancy following that massage.
4) service. DCL service is great, but they are more geared toward making sure your kids are entertained and catered to in my opinion (which is necessary. Crying kids=stressed parents). But on Celebrity, we're too were shown to our room personally and had excellent cabin service even though we were in the lowest priced inside room available. No kids, and we still got the towel animals, chocolates and other extras each night.
5) Celebrity feels more classic. The restaurant was so classy as was the rest of the ship--it really did feel like I was cruising on one of the classic old cruises of the past when everyone dressed for dinner and cruised in style. This is precisely what many people dislike about cruises, which makes DCL's more relaxed atomosphere a blessing (especially w/kids).
In summation, if I didn't have kids (and I hate to say this as hard as DCL tries to appeal to the adults w/o kids) I would prefer Celebrity just for the port selection alone. Please don't throw things at me all you Mouse-lovers!! There are many on the board who would disagree, I'm sure. Just one guy's opinion who has done both.