Homey, I know Steph is a great shooter. But the consensus method for ranking greatEST shooters (which implies A SPAN OF TIME) is the 50-40-90 club. Players who were able to shoot from ALL areas of the court DURING MULTIPLE SEASONS at a high percentage accuracy (50% from the field -- not Steph, 40% from 3PT and 90% from FT). Not only did Kevin Durant shoot 90% from FT JUST LAST YEAR...he did so with 1433 attempts! That's absurdly accurate for the volume he took.
I would more quickly go out on THAT limb and name Kevin Durant the Greatest Shooter Of All Time based on OVERALL shooting from different parts of the court. This
list of players who reached the 50-40-90 mark for a season has a top ten group that includes Nash twice, Bird twice and KD once. Reggie Miller is on there as well. Those are all time great shooters because they did it from EVERYWHERE, not just 3PT land "off the dribble" or whatever it is you're using as the rare qualifier for Steph.