It's nothing to do with whether it is coilys or seperate struts springs really, if the rate is suitable then they will do the job ok.
But I would probably stick with std type springs dampers etc, just use a decent name, but my advice would be to wait until you've been in some cars same as yours with different make set ups, so you get best what you want.
Coilys do tend to be supplied with much harder springs damp rates due to most doing track work also but you can buy softer springs and with coilys you can adjust the height to what works best, dropping on the floor may look kool but doesn't do much handling grip wise esp if you hit a bump mid corner and fall off the road.
tabetha