Both methods work well. The right choice depends on what is in the pipe and what it is made of.
A cable (drain snake) is ideal for a simple, localized clog such as a hairball or a toy in a toilet trap.
Hydro jetting is better for grease, scale, and roots, because it cleans the full circumference of the pipe.
A camera inspection can take the guesswork out of the decision. If you are unsure, we will recommend the least expensive method that will actually solve the problem.