How do the Monopoly odds change when the board is played in reverse?
The key change in reversing the direction of movement is the fact that players now leave Jail in the opposite direction. The oranges and reds are particularly profitable because they are within 1-2 rolls of Jail, among other reasons. When moving counterclockwise, the dark purples and dark blues are now in a more often visited area, so I would expect their value to increase significantly, while the value of the orange and reds would decrease commensurately. Even the light blues, which are already among the best property groups, would get a boost from being in front of, rather than behind, Jail.