That is a popular question, and I've read opinions both ways. We are taking our first family cruise also to Alaska in 2018 - I just booked it yesterday in fact. I simply couldn't make up my mind on the porthole or veranda. In the end, I went with the veranda. My thinking is that everyone says the scenery for Alaska cruise is incredible, especially during Tracy Arm day, and I can see us enjoying a large amount of time on our own veranda. If it's cold, we can bundle up and easily skirt in and out of our room.