For a first Alaska cruise, I compare glacier viewing, port time, ship features, embarkation city and whether a land extension makes sense.
Not all Alaska itineraries include the same glacier experience.
Large resort ships and smaller upscale ships can deliver very different days onboard.
A cruise-tour can add interior Alaska, but it needs enough time to be worthwhile.
I can check fares, group space, cabin choices and package value for the cruise you are considering.