I liked them all equally I guess.
inFamous 1 had a great story and was an amazing start
inFamous 2 story was good and in general more to do, loved the improved animations
Second Son had great gameplay mechanics for Delsin but wished the world was a bit more alive, First Light story was better
Stories unfolded with my home made rap songs. Feel free to listen here with lyrics: https://youtu.be/vyT9PbK5_T0