Lol in that celtics game he still had a shitload of points because they couldn't stop him going to the rim and all they could do was hack him the whole time lol you should go watch that game again. He played some lock down D and pulled down about 15 rebounds as well. See that's the difference between a guy like Kobe and Lebron. Kobe will make shit happen when it counts, Lebron shrinks when it's really time to shine. It's not something tangible, Jordan had it too.
For the record Lebron imo is one of the best ever but it's more because of his physical nature. He's a freak and head and shoulderd stronger, faster, bigger, than anyone else. He's not anywhere as skilled as Kobe or Jordan was though.