I think we cant really judge the spurs/thunder, and boston/heat series just yet, until we see how the thunder and celtics play at home.. remember the point of the 2-2-1-1-1 format is to win at home first, and try to steal road wins.
As for the finals 2-3-2, im not really a fan of that. I think the heat got screwed last year because losing one of the first two games puts extreme pressure on your team when you gotta play the next 3 games away, and possibly facing elimination.
Thats why Miami decided this year to end off with a lower record then OKC or Spurs, cuz they know they would meet one of them in the finals.