My thoughts:
Starting with Vegas as a warm welcome to the NHL:
Vegas: I would like to have seen more gold in the jersey and more black and less grey, But still a pretty sick jersey.
Calgary: Meh
Carolina: Look much better.
Colorado: Love that unique and new design.
Edmonton: The Jersey looks weird, nice, but would rather the numbers on the shoulders.
Minnesota: I can live with it.
Nashville: Losing the dark blue at the top looks so wrong.
NJ: Change was needed, looks weird but it'll grow on me eventually.
Ottawa: Upset they didn't go with the O.