H&R springs or Eibach?? (replaing my Jamex Springs)

[KB94GT]

Trying to pick the best spring that would get weak/sag over time! and has best OVERALL performance.

Right now I have Jamex springs with my Tokico shocks/struts and the car bottoms out too much. The springs have been on for about 3 years. DIdn't used to bottom out as much originally.

I am in the process of upgrading the way the car rides, and I am also installing subframes and MM rear grip package (lower control arms and Panhard bar) and I want to get new higher quality springs.

Considering either H&R super sport or Race springs, Eibach Pro Kit, or FMS C or F springs. Prefer about 1.5 inch drop but doesnt have to be exactly.

For the record, my wheels are Cobra R 17X9 w/255/45 front and 17X10.5 w/285/40 rear.