For your Alaska cruises, did you prefer Celebrity or HAL?
HAL, but for very specific reasons.
Celebrity was great - round trip out of Seattle for 10 days and I was with my husband and kids and my mom - I have wonderful memories and the ship was beautiful and my kids LOVED the kids club (it was off season - September - and there were only about 20 kids on the entire ship). In fact, even being platinum on Disney I think their fondest kids club memories was that cruise, due to how few kids there were. They were showered with attention by the staff. We had some great excursions and it was a great trip and when I look at photos the memories bring a smile to my face every time.
But HAL was a one-way from Vancouver to Whittier and so I was able to actual see more - like Glacier Bay and College Fjord. which was just stunning and beautiful. They opened the front of the ship and it was very close to the glaciers; a magical experience! And I was solo, so I splurged on really amazing, once in a lifetime excursions - like a float plane ride and bear watching and airboat ride by the glaciers with a helicopter ride over the glaciers. (My husband is claustrophobic and would never go on a helicopter ride or a float plane).
HAL had a person who gave talks every day on Alaska and narrated while we went through Glacier Bay, etc., and a lot of people loved him and that aspect of the cruise... he was not to my taste though so I didn't really benefit from that. They did have park rangers come on board from Glacier Bay and they would stamp your National Park passport book if you wished, and you could buy Glacier Bay National Park souvenirs.
The one way cruises seemed price cheaper on a per night basis. But this was years apart and I was solo vs. a family of 5, so hard to really say how that would shake out if I was traveling with a family. On Celebrity we had one of their huge, 2 bedroom cabins at the front of the ship that sleeps five - not a suite, just a really big cabin. That was amazing - we had a balcony, and a window that overlooked the helipad. Oh, and I purchased an extra package for the kids club where they got to take a tour of the bridge, but we had a delay with a shore excursion and they missed it. So Celebrity invited all of us (kids, me, DH and my mom) to a different tour with the suite guests, so that was fun.
On HAL I was on an inside cabin by myself, which was fine for me. And I personally like HAL and I had been on the ship earlier that same year to do a 2 week Aus/NZ cruise, so I loved that ship and was very familiar with it.
But, I will say, a round trip cruise is far less expensive for other travel - transfers, flights, etc. So traveling with a group, I am sure it would really add up. One way, I had a lot of added expenses due to transfers from Whittier to Anchorage (but. it is a stunning train ride), and 2 one way flights (to Seattle, from Anchorage) vs. a R/T flight to Seattle for the R/T cruise. For the HAL cruise, to save money on hotels and flights I flew into Seattle and transferred up to Vancouver, which was actually very easy, cheap and a nice bus trip.
But, the Vancouver cruise terminal was absolutely, by far, the worst embarkation experience I have ever had anywhere, hands down, without exception.