Shutter Precision dyno hubs are becoming popular because of low price and high efficiency. I've got a PD-8 and it works great. This is my first dyno hub so I have nothing to compare to but I plug it in and start riding and it powers my light. What else could you want?

I've not come across any compatibility issues. I think all dynamo lights will work with any dyno hub. The hubs themselves are designed for a certain diameter rim.