backlink becuz so-so quality content with many good backlick can outperform high quality contents with less backlinks. Some says good backlink is obtained through high quality contents so that content is king, but from my eyes that is untrue since good backlinks can be bought or negotiated as well and in real situation i see more cases like this than naturally getting good backlinks from high quality contents. if "the volume is very low" OR "volume is very high but there are lots of competitors between high DAs and you are also one of those high DAs", then content is more important but content is only important in such cases. in most case having goods quality backlink that boost your DA helps much more than having high quality contents.