I voted for Mickey's Philharmagic for show. It's such a wonderful mix of so many great movies and songs. It's a must-do for us multiple times.
I also voted for Wishes! I love the music for Illuminations, but Wishes! is the first fireworks show that made me cry happy tears - and the ending still does to this day, which probably explains the strange looks I get when I listen to it while driving to work.
Illuminations is my favorite nighttime show in all of WDW. It feels so magical to me. When the inferno barge blazes til the countries light up in unity, I am enthralled.