Energy Suspension VS Prothane

I want to get urethane bushings for my del sol but I'm not sure how these 2 brands differ. I'm getting a full kit and both give the same parts except for 1 but the prothane is much more expensive. So are the bushings themselves the same and prothane just charges more or what?

i personally put the prothane bushings on my car, but both brands are the same basically. I bought my bushing kit from jc whitney for $125.00. But beware, unless you have a lot of time, patience, and a press, you will need a shop to do the job. Expect a 10 hour labor charge, which her results in a $600 bill. Definately worth it though.