As mentioned, there are many opinions, but with all due respect, if you haven't done both, it is hard for someone to compare???
I actually see a great many people just do a one way cruise and hop in a plane for home to/from Anchorage. They are certainly grossly missing out in my opinion, but what they don't know doesn't matter.
So there are pluses and minuses for both certainly, none significantly either way or the other. Go with either- just go.