What's your favorite exercise equipment for working out?
Personally, for body weight it has to be the pull up bar. There's so much that can be worked with it, your shoulders back, chest, abs, even legs, that in my opinion it's the one piece of exercise equipment that EVERYONE, even people who aren't into working out need to have in their homes.
For weights I've always preferred dumbbells and aside from fooling around have never used barbells to train. I don't see that changing in the future but anything's possible.
What's your favorite exercise equipment?