I just saw this thread and didn't realize your decision was made last year. If I would have seen it in time, I would have heartily recommended Princess over DCL for the trips you were considering.
I'm platinum on Princess and have done a Barcelona/Venice 12 day Med cruise (before I had a child) and a 7 day Alaksa cruise also on Princess, with a 5 year old child. As the Med is so port intensive, to me the ports are the most important thing, not the ship. That being said, I find the Princess ships a nice mix of nice without being over the top glitzy/gaudy. My DD LOVED the kids club on Princess (not as much on our HAL cruise). The club room are no where near as 'cool' as on a Disney ship (from the pics- our first sailing is coming up soon), but there is much more individual attention when the kids are in the club. My DD came home with tons of craft projects after each session, received a nice stuffed animal and a t-shirt, all with no extra charges (in addition to pirate 'gear', face paint and treasure one night). I know she will be impressed with the lab/club on the Fantasy, but I'm worried she will miss all she was able to do on Princess. [She enjoyed the HAL club on our New England/Canada trip, but not nearly as much as Princess, and she didn't receive a quarter of the loot she received on Princess.]
We are the type who would always take our child with us on excursions, so needing a club that can watch a child the entire day while we are off the ship is not something we look for in a cruise, so we just care about the club availability on sea days and after dinner. Six of us missed the ship in Naples on a private excursion (long story) and I couldn't imagine that happening if I'd (or any of us had) left a child behind on board.
Thanks for your comparison update. It was definitely helpful for me and I can't wait to see how DCL compares to my Princess experience.
For others reading this, who may be considering a similar situation, please know that in all my cruises on Princess, I have never seen improper 'canoodling' among staff members, nor anyone but officers eating in the public dining rooms and Horizon Court (buffet) areas. The best service I've received has been on Princess ships. We'll see shortly how Disney compares.
I believe Princess has a great buffet (as you mentioned) that is open early to late. On other lines, I've had times I wanted a snack and had no options but room service. Not so on Princess.
Hopefully you figured out that the twin beds can be easily converted into a 'king' upon your request. Just ask the room steward. They try to have it correct if you note your preference in your reservation, but will fix it immediately if it is wrong and you let them know. I find the Princess beds most comfortable (as a twin or a king) and it is nice to have the option to have either configuration, vs the single queen bed arrangement on Disney. I've cruised with friends before and sharing the main bed would have been problematic.
I've always found the Princess cabins to be well laid out with plenty of storage and with a dorm size refrigerator in the room. I've been in the smallest inside room, had balcony cabins and a mini-suite. The Disney square footage of a balcony room seemed pretty comparable to the Princess balcony room, but it may depend upon the ship. The downside of Princess cabins is they do not have a nice curtain separating the sleeping area for the 3rd+ person(s) as Disney does.
I'm guessing you'll still find Princess more affordable than Disney even if you upgrade your room. Plus, the itineraries on Princess will be much more varied as far as ports, which is a big reason why we cruise (to see new places).
Anyway, glad you had a good trip after a bumpy start. Sailing in and out of Venice is a once in a lifetime event which may disappear soon, so I'm glad you were able to experience it.
Can't wait to hear about the excursions you took, especially from your daughter's perspective, as mine is close in age.
Thanks for the update!