My experience with different type of rotors, be it standard OEM, slotted, or slotted/drilled rotors are that all have their unique qualities. I personally do not use or desire to use slotted/drilled rotors, as too much rotor material or the rotor surface has been altered and eleveated due to design. And my experience with them is cracking that derived from the drilled portion of the rotor. I have enjoyed the stopping prowless of slotted rotors and would use them again. But a quality set of non-slotted or drilled rotors due have great stopping power too. A lot of times the basic caliper and piston design has alot to due how a rotor works along with the quality of the pad you choose. A good quality caliper with 2 or more pistons really is the icing on the cake per say to how a braking system functions . And I tend to go with a brake upgrade with oem style rotor with better calipers and great pads. Also a quality set of brake lines such as steel braided are in my eyes a great investment for years to come.
I know so many people that tend to go cheap when it comes to brakes, and in the end all it does is cause problems or failures in the end. Not to mention the safety aspect of the importance of brakes.