I didn't read your whole post or the replies, just mainly the topic... so if I'm off base, then sorry. Here you go...
I'd say coil-overs.
I have Ground Control Coil Overs and I can't tell you how nice it is to be able to raise or lower your car, this corner this way, this one this way, yadda yadda, just to make it PERFECT.
Yes, technically you have to get an alignment after you adjust the height, but I've never gotten one and my tires are wearing just fine.
My GC's dont ride any worse than my friends Prelude with Neuspeed Springs and KYB AGX's.
I'm on GC's and Koni Yellows.
They handle every bit as well/better than a spring setup.
COil Over!