Even if these rankings were restricted to players drafted since the Seattle Supersonics moved to Oklahoma City, there would be few teams with as formidable a list.
Sorry if it's a spoiler, but teams don't draft Russell Westbrook and James Harden in back-to-back years all that often.
Go back one year further, of course, and you've got something historic.
Of course, while the OKC Thunder are one of the most successful teams in the NBA due primarily to stellar drafting, the franchise's history of excellent drafting goes back to Seattle.
The primary factors used to determine these rankings are a player's productivity while a member of the OKC/Seattle franchise, and where in the draft said player was selected.
The strength of that year's draft class and how much the player eventually brought to the franchise via trade are also considered.
All stats courtesy of basketball-reference.com.