So for a while I've wondered to myself if there was an easy way to rank teams in order of who gives you the biggest PWR boost for beating them. Not as a way of ranking teams -- but just to see how much it's worth to beat each team. It isn't just "beating #1 is best," because who is "best" involves how good your opponent's winning % is and how good your opponent's opponent's winning % is -- not your opponent's final ranking.
Anyway I should have figured this out sooner because it's actually a simple formula. Since RPI is calculated as 30% Win%, 24% OppWin%, and 46% OppOppWin%, you can calculate how much each team will affect your RPI by doing:
1 (since you would have won that game, so your winning percentage in that game is 1.000) times 0.3
plus that team's winning percentage times 0.24 (since that team's Win% is now your OppWin%)
plus that team's opponent's winning percentage times 0.46 (since that team's OppWin% is now your OppOppWin%
Do that for all 40 teams, and voila --
The colored numbers at the right are each team's ranking relative to their PWR position.