What's goood for one may not be for the other.
Every television is going to be different for the actual adjustment numbers. What is perfect one one person's set may be off slightly on yours or vice versa.
As stated above, the mode selected should be standard. Color management should be off. If you are using a lot of standard def sources from a digital cable box or dish receiver, turn the Mpeg and block NR on. Set the color temp to warm. make sure when you start out everything is set to the middle ore in the case of Panasonic, "0".
After calibrating my Parents 42PX600U, I was surprised where the settings were. The contrast (picture) was at +16 and the Brightness was at +5. Hue and color were pretty accurate at around 50/50 and +1 respectively. Sharpness was at -22. Color temp was warm, black level at light.
I had figured that the neutral setting in standard mode for contast and brightness would still be a bit high as it usually is on most sets. Never did I anticipate that it would need to go up as high as it did. My parents are very happy with it now. It looks fabulous with HD images. SD content looks pretty good too.