I had Tokico Blues with Espelier springs and everyone complimented the ride and handling on my old Silvia front end coupe. I would say Espelier are some of the better springs out there to get spirited handling yet retain a reasonablely comfortable ride lowered.
Eibach Sportlines drop the car dramatically which means you need to use at least AGX's or Koni's with them. The other eibachs don't lower the car much at at all.
Now Eibach ERS springs on the other hand are dope, though they are coilover springs
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RSR's are crazy stiff and slam the car. I personally don't think much of them. I would bet Espelier with AGX's or Koni's would be really nice as well.
Don't get Tein or Megan. Tein are crap as are Megans. H&R's are a good brand but mainly european car oriented, though they do make them for our cars.
In a nutshell for a strut spring combo if I was going to do one It would probably be the Espelier.
You can get KGMM as well if you have hook ups and they are pretty dope but stiff.