Both cruise lines are tops in Alaska. Both will have great food, and a gym. I also don't think you have to worry about noisy kids or drunks on either line. The train from Whittier will take the same route to Anchorage as the Seward train. Whittier is closer to Anchorage. Obviously the less people on a ship will be less people to contend with getting off and on the ship. The Statendam may be smaller, but it is still a large ship. I don't think there's much difference in these two ships getting closer to the animals. You would have to sail on a Cruise West ship to get really up close. I would go with the itinerary you like best and the time spent in port.
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