In my personal opinion, definitely Luka. And for two reasons… That reason is his size. He’s 6’7, and he has a high release point on his jumpshot. What that means is that despite his relatively slow release, his size makes up for the slow release. He’s also a master of generating space. His ability to make defenders jump back before he steps back is hilarious. This is why I think he has the best stepback CURRENTLY in the game. All the time, I’d say, is James Harden