I'm currently on BC -BR type coils, don't really have nothing bad to say about them and customer service is great. They ride great as well and I'm on about a 2" drop (with room for more). I haven't dealt with any of the others mentions so can't really compare but have heard good things about Stance. What's really going to effect drive type is Spring Rates and valving.
Found this about fortune auto:
Fortune Auto True Coilovers, Experiences/Opinions?
Powertrix:
POWERTRIX Coilovers - 3 weeks driven..