Its a difficult one, I am appalling at working out the value of Avios (I have tried reading the write up)
I currently stand @ approx 105k Avios - looking to purchase a minimum of an Outbound F and return J to NRJ in 2019 with the Amex 2-4-1.
I am going to have to purchase some Avios when I purchase so I think trying to get as much Avios as I can now the better.