Imo, I would say Subang since i'm from Damansara area. Im studying in Inti Subang for my foundation this year and might transfer to Nilai during my degree since the coarse i wanted is not available in IICS at the moment. Nilai has everything ranging from gym to olympic size pool to futsal court. But do not have the city life of what Subang has. I'm a person who enjoys night life, so transferring to nilai might be a life changing experience for me