"Better"? I don't know... How do you define "better"? We certainly appear to be more intelligent, with larger brains, a more highly developed language skill, etc. Certainly different.
I don't know the % difference between humans and pigs, but what does that have to do with anything? I suspect it is fairly high (+95%?), since we are both mammals, and share the common mammalian ancestry back a few million years.
So you believe humans are no better than rodents? LOL