I can say that through years of Autox, HPDE and TT, stock rotors are king. A true two-piece rotor will cost huge sums of money, and the cheap two-piece will fail after a track day or two and are borderline dangerous, even on the street. I ran stock Autozone rotors on my Evo each year, and after 6 or 7 events they'd have surface cracks and need replacing ($50 ea) - that's with r-compound tires too. My friend in his Nissan ran a cheap two piece that failed after one 20 minute session.
Given you are in it for looks, I can't really help you in the rotor category, except to say invest in the looks category elsewhere. In the pad category, Hawk HPS are not an upgrade. Any perceived improvement was most likely due to the fact that you did some brake fluid replacement at the time of installing your Hawk HPS which is really where you'd see a big difference, especially if the fluid was old.
Hawk HPS also dust far more than their competition and if they get hot (even after hard street use), I've had pad transfer issues with them giving me vibration in the steering wheel on braking.
Hawk HP+ are also the LOUDEST damn brake pad I have ever heard in my life with exception of true track pads. They also turn the side of your car black with brake dust.