Where to start 8 days in Camino Frances

Hi!

I'm planning a trip which i will have approximately 8 full days of walking and considering whether to start at SJPdP or o Cebreiro. I was told that these were two very beautiful parts of the trail. From what I understand getting to O Cebreiro by public transportation is fairly difficult and was recommended to walk there from Ponferrada.

Any suggestions on how to decide?