Yes! the zeppelin bend is also my favorite knot. I probably don't use it as much as a bowline, but it comes in handy joining two lengths of rope, looks cool, and is always easy to untie no matter how much the knot has been loaded.
Besides the bowline my most used knot is probably the trucker hitch.
Carrick bend is another favorite of mine, but I prefer the zeppelin bend for real world usage.
