I don't think they're trying to 'top' anyone...I think they're trying to create a nighttime show that people actually want to stay for
That being said, IllumiNations is changing soon, we'll see how that goes
Happily is a very fireworks heavy projection show (and the best show in Orlando)
HS Star Wars show is great, if you like Star Wars
Fantasmic needs an update
Rivers of Light is very short and takes itself way too seriously
So I think Universal is good to carve its own territory