RAW is better if you want to post process.. It is important if you want maximum information so that you can adjust curves, shadows, highlights etc. JPEG files look better out of the camera but do not offer this flexibility. Processed RAW files will look better than JPEG's once you post process them.
...take raw format as equivalent to the film negatives... and you have to develop it using a software and then convert it to jpeg format. yr pc window photo viewer is not able to read/display raw format image. advantage of raw format is that you are able to set the wb/color toning/exposure settings + filters application + more more....
jpeg is processed by the cam and is compressed, depending on picture quality settings....from 1:4, 1:8 or 1:16....
raw format may not be sharper, if the image captured is in the first place oof.
note: jpeg format can also be touched up by using photoshop, etc....if there is a need for a final touch-up.
A raw file is just the raw data which the sensor produces. as to how it's process depends on you and your know-how. If you apply 0 sharpening to the raw file, then the JPG will be 'sharper'. But if you sharpen properly than the raw might be 'sharper' than the jpg.
the way you use the term 'sharper' and 'clearer' seems a bit vague.. pls clarify as image sharpness depends on many aspects, such as shutter speed, lens, focus, camera sharpening etc etc.