When I open RAW photo in acr although I have "apply sharpening to all images" option selected my pictures are not sharpened like when camera sharpens them. And it seems imposible to get acr to open raw to look as embeded .jpg ...they are overexposed by 1 stop and colors are of. If I use Nikon Capture NX Raw files look the same as embeded .jpg and it is sharpened in camera. I know i cant get the same looking picture in ACR as in NX but ACR is way off and it doesnt use camera sharpening at all.
The preference option you refer to (i.e., "apply sharpening to all images") means that sharpening -- if any -- will get applied to the image when you open the image in PS or save it as a rendered file (i.e., a TIFF or JPEG) to disk. The alternative (preview images only) means that you can preview any sharpening within CR, but that the sharpening won't get applied to the rendered file when you save it out or open it into PS.
This is separate from the actual controls that govern how much sharpening gets applied to the image. For that, visit the Detail tab. The default amount is 25. If that is too low for your taste, bump it up. You'll also want to tweak the other sliders (Radius, Detail, Masking) for best results.
CR does not use the in-camera sharpening algorithms, nor does it use the NX sharpening algorithms.