Hi Paul - there are a lot of opinions, but I shoot with both a high-end interchangeable lens still camera that shoots great video (the Panasonic GH3(link is external)) and a high-end consumer camcorder that shoots decent stills (a 900 series Panasonic camcorder(link is external)), and I get great video and stills from both.
But when I carry one camera, I carry the GH3(link is external) - because it offers the most flexibility - with its interchangeable lenses, more powerful built-in flash and easy-to-access external controls.
The GH3(link is external) has much higher still image quality - and its video images are just as good, if not better than my camcorder's.
It is a mirrorless "DSLM", however, and does not suffer from the limitations ofconventional DSLRs, with their limited continuous recording times (no more than 30 minutes) and viewfinders that go blank when shooting video, forcing you to use the LCD to compose and focus your images.