Acura Integra brake replacement

Acura Integra 1992, Mileage: 173,000.
I bought front pads and rotors from Autozone last year, and installed them myself. After almost a year, the problem appeared again, that is when I press the brake pedal at 45 - 60 MPH, the steering wheel is shaking a little bit. I had a set of new tires installed last year, alignment was done at that time. I suspect the brake pads and rotors are not high-quality. I am thinking to try good quality of pads and rotors this time. My questions: 1. Is my suspection reasonable? 2. Are OEM parts better? 3. What about some pro parts that are more expensive? 4. What brand you recommend?
Thanks in advance.