I've stuck with OEM (mostly Lemforder or Rein), or uprated (Meyle HD) where available, for general drivability.
I recently read a discussion from a bunch of friends who went through uni together, and are all development engineers for car manufacturers or race teams in Europe. Their specific chat about OEM/Rubber vs Poly bushes was that when they poly'd anything, although it was stiffer and initially handled better, they usually turned to mush under a good development test pilot within an hour; whereas although rubber wasn't quite as stiff to start with and did deteriorate, it was still doing what it should do in the same hours hammering on the circuit. Conclusion - Rubber is still used for a reason. These guys all scoffed at the idea of putting poly bushes in their own rides, BMWs, Audis, classic Porsches.
Your mileage may vary.