replacement suspension bushing advice - poly vs rubber

just wondering what people think of polyurethane suspension bushings vs using regular OEM rubber replacement parts. I'm looking at buying the front end replacement kits from energy suspension or PST and unsure of what material to choose. I also see where energy suspension also sells poly cab mounts.
Just wondering if anyone out there used the poly, and what the resulting performance or ride was, thanks fellas

P.S. I noticed that PST sells a polygraphite infused material, to me this seems better than the urethane...thoughts