Well, in my case, it was math vs compEE. (I did consider physics a long time ago). But I realized that math is only a hobby for me and that I'm fascinated of how electronics and machines work and their constructions. I also realized that classical mechanics (by this, I refer to typical physics 1 with calc course: rolling, work, projectile, etc) is just too tedious and boring. On the contrary, doing physics problems involving a circuit design is suddenly interesting. Fortunately, I am minoring (essentially double majoring) in pure maths just for interests but with no intention to pursue it in grad school.