Both conferences have 3 potentially elite teams..the next tier consists of 3 East teams and 1 West team IMO(Orlando, Atlanta, New York with Anthony, OKC)..those are teams that aren't contenders, but they could challenge the other teams and take certain series' to 7 or so..
After that, does it really matter?..teams like New Orleans, Portland and Memphis are completely irrelevant in the grand scheme of things..they will have just as much success against the top teams as Philly and Indiana will IMO..
The Lakers, Mavs and Spurs are clearly on the way down, their cores are old, they have 1 more year after this one IMO..
The Thunder are an up and coming team, but clearly worse than the Heat, Bulls and Knicks, from a potential standpoint..