Hi Christopher and congrats on your upcoming visit to the Walt Disney World Resort! Illuminations is one of my favorite Disney shows and to be honest, just about every spot in World Showcase offers a great view of this amazing display.
If I had to choose my favorite spot, I would say the bridge between the UK and France pavilions in World Showcase. This location boasts a completely unobstructed view of World Showcase Lagoon but be sure to arrive early to secure the best spot.
Rose and Crown Dining Room, located in the UK Pavilion takes "Dinner and a Show" to a whole new level! If you book a reservation at Rose and Crown about 2 hours prior to Illuminations, you should be finishing your meal just in time to view the show from your table! The patio seats offer the best view, but are first come first served. Be sure to request a patio, or lagoon view table at the podium when you check-in. Special requests cannot be guaranteed, but the friendly Cast Members will do their best to accommodate your family! Reservations may be made up to 180 days in advance,
online, or by calling (407)WDW-DINE!
Thanks so much for the question and for giving me the opportunity to spread Pixie Dust on your Walt Disney World vacation! Please be sure to write back if you think of anything else!
-Amanda F.