Better passer, more varied scoring arsenaline, but Kawh better because he is elite both ways (while Luka is below average defensively), and his strenght offensively is similar to Luka's, his crafty janky style where he slowly works every mark with patented inside out game. Insane Iso game when he is in the mood (aka playoff time).
Luka gets the edge in for the elite passing (Kawhi's weakness is playmaking, reason he is struggling in Clippers is they try to make him a playmaker, since they lack a real PG, Kawhi until clips allways played with true playmakers), and the step back 3s, Kawhi doesnt have the stepback 3 in his arsenal. Tho excellent shooter in all ranges.
Luka is 20, the fact we are comparing him to the current best player is insane in itself. If he keeps this up, he will surpass Kawhi in most ways except Rings most likely.