Teacher Rec question?

<p>I have attended classes at a University during my time in high school and have ended up taking 2 courses with a computer science professor. I was wondering whether it would look better to ask him for a recommendation letter as opposed to a high school chemistry teacher. I have known the chemistry teacher for a longer time, but I feel like having a college professor may look better and he really liked me so I am not concerned that either of them will write a better letter than the other. I also was unsure whether some colleges who ask for one humanities/english and one math/science rec would consider computer science as a valid science in this case.</p>