I guess I would like to share my experienc from brakes I have used over the last 8 years.
Im a once a month track boy with 30,000km per year street use.
I used many brake pads on my R33 GTR, STD brembo, EBC green stuff (lasted one track day) and SBS carbon ceramic, the SBC were the best by far. STD rotor STD caliper.
My R34 GTR was a different story, I went straight to the SBS carbon ceramic front and rear, they stopped great but screamed like a cut cat on the road for the life of the pad (9-12months). I then moved to the Frodo 2500 with Motol 600V fluid, the combo was maybe just a little better it was hard to tell, but my hair line cracks in my STD front rotors opened up and I cracked a rotor the first time I used the 2500's on the track, Wakefield. I then put a set of DBA4000 rotors on, the Frodo's lasted 20,000km (9 months) and then I replaced them at Christmas. I did another 2 track days and last week at Oran Park south, one of the hair line cracks opened up again and I cracked my DBA rotor, same spot, right front outside. I assume the VSPEC II brake cooling ducts kept the inside cooler, but its hard to cool the outside. I just had a new set of DBA 4000's put on.
I cooled my brakes down every time I went out on the track, and ABO BOB and I have almost the same experience. I might go back to the SBS next set just to check it out, but in reality, the Frodo/DBA combo is so cheap and do stop really really well.
I guess its hard to find a road pad that last for ever and stops like a race car and cost 20% of the Nissan replacement part. The Frodo does everything except comes at a small price if you drive your car hard on the track.
It must be noted that I cant drive very well and have to rely on very late braking to get good track times, my car does weight 1680kg's when its pounding around the track so its by no means a light weight.
Unless you are trying to keep up with John's 300Z and you only want to do the occasional track day I think the best bang for buck is the Frodo 2500. If you want to really push the boundaries then you either have to start spending more money or understand that DBA rotors can become a disposable item.
I hope this helps someone.