I'd say Serra's a fairly big underdog
Mitty's a slight favorite
St. Francis is a slight fave
Riordan's a clear fave, tho nobody seems to know why McClymonds is rated so low, might be closer than the ratings say
St. Ignatius will have its hands full with SRV
Sacred Heart should handle Soledad
Valley Christian should handle Wilcox
Bellarmine a slight fave over Menlo-Atherton

I'm mostly going by Calpreps' ratings, so take with a large grain of salt.

10. Grant at De La Salle (35 - 17)
9. Vacaville at Granite Bay
8. St. Ignatius at San Ramon Valley
7. Riordan at McClymonds
6. Los Gatos at Soquel
5. Vanden at Campolindo
4. St. Mary's-Stockton at Central Catholic
3. Amador Valley at El Cerrito
2. Inderkum at Marin Catholic
1. Bellarmine at Menlo-Atherton