True coilovers are far better than a spring/strut setup because the coilovers were designed and engineered to work together at all ranges of settings. Where a Tokico Illumina has nothing in common with H&R springs, for instance.
I prefer H&R, Toda racing makes good stuff.
Koni hands down is the best strut out there, there are for nice racing struts available but at a cost of $3000+ just for struts I don't even consider then unless your a funded race team.