A Vulcan. That whole Klingons mating and breaking bones deal is repulsive. Though you can drink with them.. and Vulcans are boring. Bleh. But Klingons are boors and at the end of the day harder to ignore.
Would you rather have Keiko's unborn baby transported into your abdomen to stay there for 3 months prior to it's birth (men, you can have a c-section) OR would you rather become an experimental test human in ketracel white addiction research?