Vin Scully for the Dodgers.
Chick Hearn for the Lakers.
Bob Miller for the Kings.
Growing up in SoCal, my radio was on almost every night listening to one of them.
You can add Dick Enberg of the Rams. When Enberg was announcing a game, you didn't need a TV because his description of the action was so vivid ("Gabriel back to pass...fires it over the middle, caught by Jack Snow at the 40...Ooh, is he hit at the 35").