If you live in a climate that varies [cold to hot], the factory pads are always the best compromise becuase they spend months/years getting the compound correct.
There is always a compromise to get good cold braking!
If you drive to extremes [mountains or lots of high speed frequent braking [police pursuit, track autocross in summer] you tend to shift towards a pad that is designed to function at 200F hotter........this takes away from cold initial braking but you understand what you are buying so yo adjust your early morning braking to compensate.............what happens if you loan the car to someone inexperienced.........they fly thru a stop sign/red light in winter.
As long as the edge code on the pads is at least FF you are buying a decent friction compound however the range of FF is broad ...... Mu must be at least 0.35 but not greater than 0.45.How much cashew oil and dust does your selected pad contain?
http://www.ornl.gov/~webworks/...6.pdf
http://www.babcox.com/editorial/bf/bf30134.htm