i hate lebron more than the people you listed. lebron is a quitter. who cares if an athlete cheats on his wife. The are in great physical shape and have loads of money.
Seriosuly, tepop, let's consider:
LeBron's
contract expires, and he enters a period of time during which he can do as he pleases. He chooses to do for himself what he knows his front office will never be able to do for him. His former team and its fans no longer have a contractual right to his services.
Kobe's
contract (his marital contract) does not expire, but he violates it by having an affair (only one confirmed that I know of).
Tiger's
contract (his marital contract) does not expire, but he violates it by having multiple affairs.
LeBron violated no one's contract, violated no trust. The other two
did, in fact violate their contracts. Now, I don't know about you, but my father taught me that a man, a real man, does not violate a contract into which he enters. Marriage is a contract, and these guys broke it. LeBron is only guilty of ego rum amok. Ego run amok, however, is a problem he shares with both Kobe and Tiger (and countless others). Tjeir egos (and their wangs) led them to where they landed. LeBron, to his credit, has not permitted this to happen. If he has any brains whatsoever, he'll lead the Derek Jeter life and marry at, like, 35.