Science is definitely important in making people's lives more livable, but I suppose it depends on how civilized a particular society is; at the point where the lives of average people can be about self-fulfillment and not simply survival, art and science pretty much become equals, because good works of art can be every bit as important to an individual's well-being as technology (I sure as hell wouldn't be in as good of a mental state as I am without certain works of literature). They also have a tendency to push and inspire each other a lot. Hell, two entire art forms, video games and film, wouldn't exist without technology, while technology that we take for granted, like cellphones or the internet, likely owe their invention to various works of science fiction. I don't know if either is really more relevant. As far as which I'd rather pursue, I'm definitely more of an arts person.