Another thing to consider: When dealing with polyurethane bushings, be advised that they're not all of equal hardness. They are graded by a property called
durometer, how resistant they are to distortion or bending. Put another way, the 'softness' of the polyurethane. Poly can be made in a wide spectrum of softness to allow you to tailor the bushing's properties to where you want them for a given application; for any given application you can hypothetically have bushings as hard as rocks or have them soft like a gummy bear though bushings as soft as the latter aren't terribly useful in most vehicle applications. A higher durometer number is harder.
This means that by carefully selecting bushings, you can tailor how your vehicle handles and rides. Sometimes you will want the hardest bushing for least distortion and suspension binding, sometimes you will want a softer bushing for shock absorption and better ride. While all manufacturers will tailor durometer for each bushing application, they tend to certain biases. As a gross general rule, Energy's bushings tend (and this is not a hard and fast rule even within similar applications) to be harder than Prothane's. There are other reputable manufacturers too, like Daystar and PowerFlex; you can inquire with vendors as to what "Shore A" durometer they are using. (Also, the other makers don't necessarily have a graphite impregnated option for every application, so inquire first.)
Here is a related article for additional reading, from the point of view of European car guys that explains about Shore A durometer numbers and what you're looking for there - decent reading although not everything applies to Bronco application bushings:
https://www.eeuroparts.com/blog/2120/how-to-shop-for-poly-bushings/