Best of Both Worlds. The Borg--Combine organics and technology to achieve perfection, the best of both (organic&technological) worlds. Riker--Wants to stay aboard the Enterprise, also wants to be a starship captain. In this circumstance he gets both, the best of both worlds (be captain & stay on the Enterprise) Locutus--Riker wants to stop the Borg and save Earth. Riker wants to save Picard by abducting Locutus. Riker can either take his shot at the Borg cube to defeat them OR rescue Picard from the Borg cube. Riker gets lucky. He defeats the Borg AND gets to rescue Picard. Riker gets the best of both worlds. I used to recall a few more examples, maybe with Shelby. In any case, more than enough to earn the title "Best of Both Worlds".