We were there 2 years ago over Christmas, and it was extremely crowded Christmas Eve. and just getting down Main St. was a major chore. We won't go back over Christmas anymore.
I just took my 8yo. Dh was busy & couldn't go this trip. We stayed at AKL and had a blast. We were perfectly safe.
As long as you're prepared for the large crowds, I'd say go for it!! Just make your ADR's. During our stay, if you didn't have one, you couldn't get a table.