If I were you I would take Hwy 1. It might take a little longer but it is the most direct, easy to navigate and scenic choice. You may want to rent a GPS also, it takes almost all of the stress out of navigating.
While no one else has mentioned it, please take your time, drive slowly, give plenty of room to the other vehicles on the roads, and stay at or below the speed limit. The transit police vigorously enforce speed and set up on the roadside with handheld radar, they will flag you over if you are speeding. Better to arrive without incident than to get a ticket or worse.
The roads overall are good, but you aren't in the US. The other drivers can do extraordinarily illogical things on the road, and that occasional large pothole or missing manhole cover can really mess up your day.
Stay vigilant, drive slowly, and enjoy the scenery, you are in for a treat.