What a beauty. I think a few questions would help narrow it down:
1) Is your car a DD?
2) Is your car going to see any track days?
3) What is your overall budget?
4) What are mandatory features you require with coilovers and what are "nice to have"?
Once you're able to answer these questions, you'll be able to narrow down your choices to 2-4 coilovers and from there, you can research or better yet see if anybody locally has a similar setup to get a ride with. Personally, I've been eyeing a set of KW V3's for the spring