This makes me think of American history. The vice president was originally the runner up in the presidental race. This was used because there were (for a very short time) no political parties and they were not wanted. In 1796 (unsure about the year), John Adams and Thomas Jefferson, members of the opposing parties, became president and vice president. Of course, we don't have political parties, so this should not be an issue. This probably doesn't affect how we should elect deputies, however. Regardless, I shall go with the runner-up, especially based on the participation in the first elections of this demogame.