BC BR Extreme Low Coilovers vs KSport Kontrol Pro Coilovers

I'm curious as to some input on which set is "better". I'm running a fairly aggressive set of wheels currently and want to introduce my car to the ground. I don't want to go super crazy but it's nice to have the option for shows and whatnot. The thing that has me intrigued about the BC's is the custom spring rates (and the fact that everyone seems to run them). I figured I could go with a higher rate and get less bottoming out/rubbing. Even though I don't know what rate I would go with. I look forward to some advice. Thanks!

Also, if someone knows of a preferred vendor I'd love a heads-up.

I believe that both are in the same category in terms of performance. Both have great customer service and adjust-ability. I do believe that both charge extra for custom spring rates. Keep in mind that the Ksports are Orange and that the BCs are black and gold. The BR Coilovers automatically come with the Extreme Low built in (as it was too popular not to do it)

If you PM me your Zip code I can set you up with a good price for either one.