Just about any section of the PCH is a great ride, and of course any riding during the cold months is great riding!
Sorry to hear that you didn't like the floorboards too much. I know that one thing that bothers me about them is that they are so close into the frame. I'm thinking about getting the extenders from Kuryakyn to push mine out from the frame a bit, for a more relaxed position. That will also help avoid burning my boot heel. Not that I've ever done that on my SG, but it could happen.
I' hoping to go north nxt time - up towards San Fran. But it'll have to be warmer, hehehe...
I rented an Electra Glide last year (when I rode form L.A. to Vegas), and that's when I first discovered that I don;t like floorboards. You're right about them being in too close (hence the melted boot heel!). I am also used to forward controls, so the boards put me in a seating position I'm not really used to. Now, getting used to the seating position isn't an issue after a few miles anyway, but I do much prefer forward controls. The other thing I'm not fond of is the heel/toe shifter. I find it forces me to put my left foot in an unnatural position for me.