I can't really pick either option because it isn't a good movie, but it isn't not a good movie either. Space Jam is an enigma that can't be defined inside the confines of this reality. So what I'm saying is like 6.5/10?
I have and will forever love Space Jam. If that movies comes on tv I will stop the rest of my day to watch it. IF there ever is a Space Jam 2 starring a certain Lebron James, I will be on the front lines protesting the movie though.