Tiens or Eibach

Alright well to start my suspension system is pretty much shot on my 03 GTZ Thinking about getting some Koni Sport Yellow Shocks, I wanted to get some opions on whether I should go with the Eibach Proline or the Tien S-Tech lowering springs to go with em? Is the extra cost of the Eibachs worth going over the Tiens?

Secondly are the Koni's worth choosing over KYB Gr2s or the AGXs?

Teins are great, I prefer the greater drop vs the Eibachs, i had them on my 8g back in the day with Gr2s, i loved the look and the ride

x2 have on my car currently