Plo or Padme?

Do i use Plo or Padme for the final slot on a JMK team? he’s gonna be my first GL with only one requirement left. i’ve got r8 Padme and my Plo is R4 but im relicing him up to atleast 7 maybe 8 because of my Neg fleet and GL ashoka way down the line. please let me know why i should i use one or the other because i want to know what benefits they bring to the team.