I have the habit to almost always make some (even minor ones such as cropping or levelling) adjustments to the pics, so I shoot RAW to give me the flexibility of making changes without losing details.
Jpeg - I'm scared of raw! I'll get around to it...I did a couple of Raw shots, but haven't seen them as I can't view them on my computer. When I am able to open them, I will probably do Raw+Jpeg.
RAW with all cameras. As my skills improve and software improves, I can always go back to the source and apply a fresh interpretation years from now. With the Nikon, it is 14-bit RAW and 12-bit for the Fujis, allowing much finer tuning than the 8-bits per channel of JPEG. With the new X-Pro1, I am shooting RAW+JPEG for gratification while waiting for Adobe to release a new version of ACR. At that point, JPEGs get abandoned.