You would think the 4 piston and larger pad would be better but not by the numbers. Have had this explained several times by several different folk. Being I am no smarter than I aught to be I bow to the numbers and hope the final product is at least as good as the stock set up.
I have found with stock calipers that the cheap semi metallic Saab pads seem to stop better. Key word here is “seem” have no real test data other than seat of the pants feel. Still for $20 and a few minutes to swap the pads it is a cheap date.
Oh and the Saab pads do not seem to eat the rotors.