BMR, Spohn and DSE from most cost effective to best IMO. The biggest difference you will find between brands is weight, bushing material and arm material.
What bushings you go with will depend on your usage with the car. We have hands on experience with all of the above. Feel free to call, PM or email me anytime with questions and I will be happy to explain the differences and benefits and help get you dialed in with the right parts to meet your application.