Its really hard to compare line to line, each one is different, diverse offering something for everyone,kind of like comparing apples to oranges.
Making a broad-based comparison, IMO i would put Princess squarely in the middle, above NCL and just below Celebrity.
What we like about Celebrity is the up-scale clientele for a mass-market line, the food and service is quite good. My husband prefers set seatings, although the rest of us like some variety. Doing totally free-style though was not for us. The activities are less varied on Celebrity, and this year's itineraries to the Caribbean for 7 days are quite poor. We are 2 families traveling together with 2 teen-age boys.
I posted on your other thread before I read this one!
I don't know exactly what you mean by "up-scale clientele"? On any cruise out of Galveston there will be a lot of us "laid back" Southerners .
I believe that you can reserve a table for a certain time each night if you want to avoid Anytime Dining. We never did that, so I'm not sure how it works.
There are many activities on the Grand Princess, and I don't think the two boys will have any trouble finding things to do and making new friends.
We found the staff to be very nice and helpful, but they are probably not as "formal" as the staff you had on Celebrity.
Personally, we considered a Celebrity cruise, but decided that it was too up-scale for our tastes .
__________________
Fern
"A truly happy person is one who can enjoy the scenery on a detour."
Carnival Inspiration 2002 Carnival Elation 2004
Grand Princess 2004 NCL Sun 2005
Sun Princess 2006 NCL Dream 2007
Caribbean Princess 2007 NCL Dawn 2008
Island Princess 2008 Island Princess 2009
Golden Princess 2009 Carnival Conquest 2010
Grand Princess 2010 Island Princess 2011
Grand Princess 2011 Carnival Magic 2012
Carnival Dream 2012 Island Princess 2013
Carnival Magic 2013
Without a doubt for me - Princess first, Celebrity a close second and NCL (not for me cuz only have Free Style Dining and I like Traditional). Pluses for Princess - choice of dining - Traditional or Personal Choice where you can make your reservation each night; Celebrity Traditional only.
Princess fresh water pools (only cruise line that has them) - the rest are salt water.
Princess actual refridgerators which keep drinks and ice cold - Celebrity = mini bars (think, but not sure the same for NCL).
Food - equally good on Princess and Celebrity (been quite a few years since I took NCL) as is the dining room and cabin service.
__________________ I cruise the Emerald Princess, Eastern Caribbean on April 16, 2012
I think you'll find Princess and Celebrity passengers to be pretty similar... though I do understand cruises out of Texas are a bit more "relaxed".
Princess entertainment is very good, with one caveat --- on the Grand Class ships the main showroom is a bit undersized, so getting a seat generally requires arriving a bit early.
I like the premise of "Any Time Dining", but on the Grand and Golden we experienced alot of waiting for tables... and with different service teams, we found good and bad on different evenings.
I give the edge to Celerity in regard to food and service, but there'll be no "suffering" on Princess either