I enjoyed the movie as a popcorn flick, but I definitely preferred the first two. Didn't care for Bello, the freakishly adult son, or the underuse of Jonathan my favorite character. I did love the Yetis though, shoulda seen more of them. The football gag didn't bother me at all. Unfortunately the entire story is a beat by beat remake of the first movie, though.
I mean really, this comes out 9 years after the first movie, and they have a 25 year old son?! WTF.