I used to swear by the ZHP knob from 2003+ on. Now I can't find anything I like other than the stock ZMP knob for e82/e9x. On my now sold e82, I added the 1M flat black trim, loved how clean it looked.
The golf ball knob is awesome though, I want one if I ever do my offroad e90xi build. The 320si race cars had them as well.