RAW 100% of the time, and that's full RAW, not one of the not full RAW options now being offered.
Good point, and another flaw in the choices for the poll.
I shoot MRAW most of the time (5DIII), because 10MP is more than good enough for me, for most subjects. The files are smaller and load more quickly in post, too, although my PC is beefy enough that that's not really an issue.
I only go to full RAW if I'm shooting something like a wedding or portraits, where maximum resolution is desirable, or if I can't zoom in enough with the mounted lens, and I plan to do extensive cropping in post. Fortunately, it's quick and easy to change between RAW modes using the rear LCD and the Q button.
I hadn't considered that MRAW images will flush through the camera's buffer more quickly than full RAW, but it seems reasonable. I'll have to do some tests.