You haven't really proven your point: Ilgauskas is the most consistent playoff player on the cavs, Mo Williams is unproven and Lebron breaks down, often, in playoff games: sometimes he shows up, sometimes he vanishes. Actually, his career playoff numbers are spotty. The cavs, in my opinion, are unlikely to win the title, just because of that.
As for Kobe, the fact that his team was trash, until the acquisiton of Gasol, one of the best bigs in this league, speaks for itself. Wade lost his big man: Shaq, and, though he's good enough to get them into the post-season, they're probably going to get bumped in the first round. Michael Jordan is the greatest, ever... period. The guy could have played with bums, and he did: Pippen is one of the most overrated players ever, and would have still crushed the rest of the NBA. What made him great was his ability to string together numerous difficult shots, in bunches, in the span of a few minutes, until the other team would just fall apart.
The general rule is that you can't win without a competent big man. Every team that's competitive has one. Dumping some of the best offensive talent, without providing them with a stable middle to play around, offends my conscience, as a former player and former coach.