I replaced my rotors/pads because one of the rotors was so warped that when I stepped on the brake it was like going over speed bumps. I did a bunch of thinking/rethinking at the time also (as in this thread) and decided to go with cross-drilled on the theory that the increased cooling surface area and greater ventilation would keep temps down and thereby prevent warpage of the small diameter rotor on such a heavy car. I put some faith in the quality of the aftermarket rotor also and decided to install ceramic pads (to keep my cross-laced wheels clean) even though I know those pads have a reputation for generating high temps. Since stopping power is also a function of clamping force, I wasn't concerned about the holes decreasing the friction surface area (press pedal harder or add hi perf brake hoses, but probably negligible effect on a street car anyway).
I bought PowerStop rotors ($160/pr
) because the BruteStop and SuperStop pieces were too expensive, and not generally available (SuperStop) and I don't think the Raybestos parts were plated.
So far so good: One year now (~10K mi) since install and smooth as silk braking still (and with the QuietStop pads my wheels stay clean too!).
Breaking in this combination of rotor/pad requires a very light foot for the first miles while the pads bed in the rotors to avoid transferring chunks of pad to the rotor (scrape and remove if this happens).