The other contenders for Best Animated Feature Film are Kubo and the Two Strings, Moana, My Life as a Zucchini, and The Red Turtle. These are also excellent movies that you should absolutely go see if you haven't already. I personally haven't seen the latter two yet, but I've heard nothing but good things about them.
Again, congratulations to the cast and crew of Zootopia for earning this nomination! Save the date (Feb 26th, 2017) for the official awards ceremony, where hopefully we'll see a movie about a fox and rabbit take home the highest award in cinema!