Need help with my S13 brakes...

[90s13hatch]

Hey everyone well basically i just got R33 brakes that i will be putting on my s13..and im redrilling the rotors to four lug...but is there a reason why five lug conversions are better..is it just cause you get more wheel options or is it something else....the brakes came with the conversion for 5 lug but only for the front..so i decided to just get four lug..but if someone could plz guide me i would apreciatted...thanks! ???