Of the three, only KLAC has a full enough metro coverage area to be fully supportive of the "new" team.
KFWB is, today, a really limited signal and 710 is in trouble when sunset occurs... which is pretty early in the winter months.
Better still would be a compatible FM. It does not have to be a sports station, just one that would have the signal to cover the whole market well.
It will be one of the classic rock stations. You heard it here first.