I'll chime in here as well -- This is your honeymoon, dude. You and your partner are going to be stressed out to the max by the time you hit the road. You might want to consider kicking back a little and enjoying each other's company rather than being a road warrior for 2 weeks.

The route looks fine -- I'd do it slightly differently, but everyone's taste is different. As a totally uncalled for suggestion, I'd do something like

LA to Cambria/ San Simeon with a long lunch stop in Santa Barbara. (Get out and walk around!!) There are some very romantic places in Cambria and I've stayed overnight on a hotel on the beach in San Simeon. For that matter, about a hour south of there is the Sycamore Oaks hot springs and resort -- very romantic.

2nd day -- Hearst castle tour , leisurely drive up through Big Sur to Monterey. You can make it into SF that evening.

3rd day -- all day in SF. Chinatown, Fisherman's Wharf, etc.

4th day -- Napa Valley. Some very nice romantic places to stay here, and some very good restaurants.

5th day -- out the north end of Napa valley and over to the coast, up 101 to Crescent City. I'm somewhat concerned this might be a push day of driving, particularly if you want to do sightseeing at the Redwoods.

6th day -- Tilamook and the Oregon Coast.

7th Day -- continue up the coast. Rather than heading straight for Seattle, I'd continue on around the Olympic Pennisula, stopping at Hoh Rain Forest and ending up at one of several romantic hotels short of Port Angeles. I'm partial to the Lake Crescent Lodge, but there are several others in the Olympic Pennsiula area as well.

8th day -- Hurrican Ridge, ferry to Seattle. Sightseeing in Seattle.

9th day -- Seattle to Oregon.

10th day -- Oregon sightseeing (portland/ Oregon city area)

11th day -- Portland to Mt Shasta, or beyond.

12th day -- Yosemite

13th day -- Yosemite sightseeing

14th day -- return to LA area