I dont like when people try and compare two players, when they have really nothing in common. Fact is that Kobe is a true all-star. He plays with his heart, and is very clutch.
Lebron is cocky. He is young (23), and have a lot of personal growth to obtain. Every time he is involved in a bad ass execution, he gets all cocky (not like jordan, who truly played by his heart), like he needs that for his ego. I'm not going to say hes like Dennis Rodman, but he has some MINOR egoistic qualities.
Kobe is hands down better. He may not have "muscle" like labrezzy, but he has his heart and soul truly in the game, which makes him a legend in my mind.
Also, Id like to add: Look at who their playing for. Kobe is in the west, and labron is in the east. The west is known to have a tough squad (this is exactly why the pistons made it to the playoffs this year). I don't think the cavs would of gone this far if they were in the west.