I've seen a few LPCs and MSWs. For simple coping skills and functioning as a sounding board, they were adequate. However, when I've gone into severe states of deterioration they were very poor at connecting the dots and recognizing trauma reactions. PhDs were slightly more helpful navigating rough waters. No noticeable difference in care when things were steady for me.

I'm hesitant to make any generalizations though, because it could have just been the people I saw.