My Predictions:
D1
Contenders: De La Salle,Berkeley,College Park,Monte Vista,Pittsburg, San Ramon and San Leandro.
Darkhorse
ittsburg
Finals: DLS vs Monte Vista
Champion: DLS in close one
D2
Contenders:Casa Grande,Dublin,El Cerrito,Las Lomas,Montgomery,Newark Memorial and Winsor
Darkhorse:Newark Memorial;Windsor
Finals:El Cerrito vs.Las Lomas
Champion:El Cerrito
D3
Contenders:Bishop Odowd,Campolindo,Moreau Catholic,Drake
Darkhorse:None.The above final 4 will be good
Finals:Bishop Odowd vs.Moreau Catholic
Champion:Bishop Odowd all the way
D4
Contenders:Cardinal Newman,Marin Catholic,Salesian,St. Mary's(Berkeley),St.Patrick's
Darkhorse:None
Finals:Cardinal Newman vs Salesian
Champion:Cardinal Newman
Don't know enough about the lower level teams.