If you could have any of the attack or abilities of the ginyu force, but only one attack or ability, which one would it be and why?

For me its simple. I would want to have captain ginyu's body swap technique. After successfully completing that move, its possible to learn the other persons abilities. It didnt work on goku because hes pure of heart. Remember, hes been doing that technique for a long time, so its easy to tell the form he has in the anime is not his original form and he learned the abilities of that body.