Yeah, I5 south of Redding is boring, and so is Sacramento for that matter. Take 101/1 south - leave I5 in Grants Pass and go the inland coast route. It's a beautiful, if slower drive.
It's pretty easy to stick with 199 through Grants Pass, and in reality, the coast route is probably less likely to get snow than I5, which has a number of reasonably high passes near the Oregon border. The road those guys took was just asking for trouble at that time of year:-/