Very late response to this post.
Option 2 is fine but the advantage could quickly be really big on smaller boards.
Option 1 has my vote with the a slight modification. The stronger player needs to win more
points than the weaker.
But is that the same thing ? Yes and no. I mean that the bar to win should be set at a normal level for the weaker player. This insures that most usual sacrifice strategies are still available for the stronger player.
Example : 20 points game with handicap of 10 points
Option 1a : Weaker starts at 10. Too difficult.
Option 1b : Everyone starts at 0 but stronger has to reach 20+10. Better !
Edit : I just realised this comment is similar to eoc's. So,+1