Maybe I'm in the minority but I was not a fan of the light displays at KD and Carowinds. I found them to be vastly inferior to BGW.
I definitely disagree here. BGW has some incredible displays that can't be touched, like Polar Pathway and the tree in San Marco, but I would argue that in many cases KD's lights are more elaborate and creative than BGW. Not only do I feel there are more decorations overall, but one thing that stands out to me is how much more KD uses trees to their advantage in their displays; in areas like International Street, the lights are so interwoven with the trees that you get the feeling you're completely surrounded in the lights. Other trees throughout the park are consistently wrapped in colors to match the area, creating a level of immersion that I feel BGW lacks. Likewise, areas like Candy Apple Grove where every single tree is covered with lights where literally every single light individually changes in sync to the music are something BGW just can't compete with. CT's displays feel much simpler by comparison.
Christmas Town is still a beautiful event, and though I haven't visited this year, in my mind it's still a great one - maybe due to a mix of nostalgia and the fact that BGW's charming European framework will always be conducive to that classic Christmas feeling. But I do feel that KD has raised the stakes for holiday events in the region, and that what was groundbreaking at CT a decade ago doesn't have that same "wow" factor anymore.