Is the amount of energy required to get a spacecraft from the Earth to
the Moon greater than, less than, or the same as the energy required
to go from the Moon to the Earth?

You would require much more energy to get from the Earth to the Moon
as you would have to overcome the Earth's Gravity.

Here's some kooks that claim they have proof we never went at all!
http://www.moonmovie.com/moonmovie/intro.swf

Canadianhelper is correct.  Think back to the moon landings if you are
old enough.  To go from the earth to the moon, the astronauts' space
capsule and lunar lander were launched atop a massively powerful three
stage Saturn rocket.  To get from the moon's surface to the lunar
orbitar, just took the power of the much smaller lunar lander.  And
then from the moon's orbit to earth, the power of the space capsule
was enough.