By far. Even though it was a comedy you felt for the aliens who were the last of their people. Especially when you saw them suffocating.
Name one race of aliens in recent trek history that the audience felt any emotional connection to.
Better written, better character development (given that the tng cast were given new personalities for the big screen that is no surprise) better paced.
Apart from first contact Galaxy Quest is vastly better on every point and funny too.