Monopoly Question

[GTSamIAm]

Remember, there are 40 spaces counting Go as number 1. I have the green monopoly. My opponent has me beaten badly, has St. Charles monopoly, Boardwalk monopoly, yellow monopoly, three railroads. It's bad news.

I just landed on the third yellow, that's the 29th space, Marvin Gardens. I need to take one house off my greens to pay the opponent. My opponent had just landed on the third green, the 34th space, Pennsylvania Ave.

Which green should I take the house off of for maximum profit? The first, Pacific Ave., the second, No. Carolina Ave., or the third, Pennsylvania Ave.? Or in other words in most cases but not necessarily, which green does he have the least chance of hitting on the next rotation around the board?