"Best" is a subjective, and quite frankly, irrelevant term. Heres an excerpt from the sticky at the top of the page, as well as link if you wish to understand further:
I believe there is a lot of confusion understanding the point of a sway bar, it is not simply to "reduce body roll." The point of a sway bar is to adjust grip independently between the front and rear, depending on whether your car is "pushing" or "pulling" in corners. This is a part 90% of street cars will not need, but is not something i will not spend the time explaining, i'll allow this article to. This is just another one of those mods you will need to do research for your specific goals and needs.
Car Suspension Tuning: geometry setting guide
Also from said sticky at the top of the page, an excerpt regarding rotors, namely the second paragraph in regards to your question.
Big brake kits do not mean more stopping power. Again, big brake kits DO NOT mean more stopping power. The point of a "Big Brake Kit" is for higher heat retention, and a fixed caliper + more pistons for more even pad wear on a road course. All a street car, or even mild track car, needs is a decent set of pads and rotors. For example, i run a set of Carbotech XP10 (more of a track pad, not really recommended for street use), and just a set of centric premium rotors on my GT (non brembo) and i can kick the abs on at about 75% braking with 295 nitto NT05s on all 4 corners. What this means is i still have WAY more brakes than i do tire. If you want better stopping power, what you need is good tires. Tires + a good set of pads + a good set of rotors, in that order, is the recipe for better stopping.
Drilled and/or slotted rotors. These are a gimmick, they look damn cool, but will offer 0 performance benefit over a premium blank rotor. Drilled rotors crack, period, it is not a matter of If, but when. Drilled rotors means less thermal mass to absorb heat, and less surface area for the pad to provide clamping force, they are a waste of money, and not beneficial in any way other than cosmetics. Slotted rotors are somewhat the same, really you're just paying for looks, and they do look cool, but just keep that in mind when shopping for brakes.
Cross-Drilled Rotors Myth - Xtreme Import Performance