Negative... I don't shoot sports or wildlife in RAW. Using a 1D M4 it slows the camera down a bit shooting high-speed in RAW, limits the number of consecutive shots, fills-up memory cards fast and I generally don't do extensive post work on those shots. Landscape and Portraits I do shoot in RAW. I try to nail the shots as much as possible using the camera settings to save time. Even in JPEG I can adjust the WB using the pre-sets in Aperture 3 and get good results.
I almost always set the WB manually on the camera even if I am shooting in RAW. One of my favorite looks is to set the WB to Tungsten outdoors at dusk then hit the subject using a flash with a full CTO gel. It is such a cool dramatic look. I also will sometimes mellow out the Tungsten setting and use a 1/2 CTO gel.