I love Black Rapid. I have an RS-7 which has been awesome for travel since I can carry the camera at my side with the weight distributed over my shoulder. I combined it with a wrist strap for when I need a little extra security. My RS-7 has seen thousands of photos over years of travel and it's still good as new.
That said, strap comfort is very subjective it might take a couple tries before you find something you really like. In either case, getting away from the normally included neck strap can be huge for comfort.