Should be, but I struggled with it anyway. There's something about Kawhi's quiet excellence that appeals to me, as well as his superior 3-point shooting. But Lebron does everything else, and he's so physically imposing. However, we've also seen a younger version of Kawhi outplay a more physically imposing version of Lebron just 3 years ago.
In a vacuum, if you want to start a team from scratch for one season, or one series, Lebron is the obvious choice. But in terms of "whom would you rather (hypothetically) add to the Blazers", I'd actually go with Kawhi. And then I'd convince him to wear #11 so all those Meyers fans' jerseys could be usable again.