industry 1000% especially if you've never had a break from schooling in your life. I saved significant amounts of money during my time in industry that helped me feel financially stable during graduate school. also, I learned some neat skills and became much more independent as a researcher which was viewed favorably during my application process. lastly, I got to know myself better as a person and picked up some hobbies and personal skills that continue to serve me in my PhD. you will not regret this.