I'm coming in fairly new and looking at these digital currencies and these are my thoughts.
#BTC is too expensive at the moment. I know I'll be able to buy it at around £20 again at some point and I'm patient.
#ETH is impossible to actually use, because of the #GAS fees, but i can wait till they come down. I'm patient.
#Monero is a really good way of actually paying for things, because it's cheap to send. Okay it takes a while to arrive, but I'm patient.
#Lighting is actually #bitcoin's killer feature, because it makes it usable.