George Karl said on a Radio show that he preferred to Dallas over OKC if he had to picked the two. Denver's 3-1 against Dallas and has the speed advantage. OKC has the tie breaker over the Mavericks. So if they win out and Dallas loses one, they will get the 3rd seed.
They'll probably lose to OKC anyways but them losing twice in the same week gives them an advantage. OKC will gone into the series over confidence thinking they have an advantage when they really don't. The Thunders will have a much more difficult time beating Denver with Affalo, Birdman, and Mosgov back for the playoffs fully healthy.