Saw Rise of the Guardians last night with Stu and it was as awesome as I hoped it would be.
I've seen people just calling it "Avengers for kids" and it's a pretty accurate description. Yeah, the story is simple, but it was fun to watch The Easter Bunny, Santa, Tooth Fairy, Sandman and Jack Frost all interact with each other.
Also, I love the design of the different worlds for each character. William Joyce (the writer of the Guardians of Childhood books and a major producer on this movie) wanted to try to answer every single question a kid would have about these characters? How does the Bunny make all the eggs, how does Santa go around the world in one night, etc.
I also thought the mythology of the world and would love to see it more explored in future films. Granted, not sure if they would just reuse Pitch or try to create another villain, but not sure what the next villain would be. With that said, makes me wonder if other characters would pop up. Like Cupid for Valentine's day, maybe father time, mother nature, etc
My only complaint is that I would like to see more female guardians, but the writers had to play on classic childhood characters and most of them due tend to be guys. (I had thought a female cupid would be awesome. Another badass girl character with arrows that could join Merida and Katniss in movies. XP)
Anyway, I would say this movie is just as good as Wreck-it Ralph, but I honestly can't say one is better than the other. It would be like comparing apples and oranges really. All in all, it's a movie worth seeing, I think the fantastic animation/designs make it worth it alone.
I also have a theory on Jack Frost.( Jack Frost spoiler ahead )