Personally, I like the wine room. It is tucked off in the corner, small and great view of Illuminations.
If your ressie is at 8, you may or may not be seated promptly. Plan on at least 1.5 hours for dinner. When Wishes is ready to start, head out onto the observation deck. What a view!
I like when we time it so that we view wishes after dinner and then come back inside and have a lovely dessert.
Sounds like a great night planned!