Here of the seed odds for each of those teams based upon individual game odds using 538's CARMELO ratings.

Denver:
59.45% - 2 seed
40.55% - 3 seed (vs other)

Houston
40.55% - 2 seed
38.49% - 3 seed (1.07% vs Utah, 37.42% vs other)
20.96% - 4 seed (0.84% vs OKC, 20.12% vs Utah)

Portland
20.96% - 3 seed (0.84% vs Utah, 20.12% vs other)
75.47% - 4 seed (1.07% vs OKC, 74.40% vs Utah)
3.57% - 5 seed (vs Utah)

Utah
3.57% - 4 seed (vs Portland)
94.52% - 5 seed (74.40% vs Portland, 20.12% vs Houston)
1.91% - 6 seed (1.07% vs Houston, 0.84% vs Portland)