Launching from the (nonexistent) surface of Jupiter would be the comparison. From a low orbit of Jupiter you need a lot of delta v to escape, but you don't need

Launching from the (nonexistent) surface of Jupiter would be the comparison. From a low orbit of Jupiter you need a lot of delta v to escape, but you don't need extremely high thrust as would be needed to get in to orbit in the first place from the surface of a body. You could use a very efficient thruster over a long period of time which is a lot easier to design for.