Money is also Power.
So, if you're too choose one, what you down for ?
Power or Money ?
With power you can get money. But then there are different kinds of power. Some power might just be in your household or family, some might have power in just their community so since the power is not defined I'd go for money.
With money you can get power. This doesn't mean you can go everywhere with your money because there are people who have so much money and they just don't care about your money but still you'll command a huge amount of respect and even some powerful people will respect you and want you as an ally.
To me, power is must important. With power you can command and make laws that those with money will obey. Both money and power is necessary in life.