This would presume Comey has the integrity and balls

to do either one.
Recommend indictment for three reasons, Mr. Director. First and foremost recommend she face legal consequences because her actions were criminal.  Recommend indictment in order to re-establish the integrity of your agency, whose reputation has been tarnished by your cowardly July decision. You know it. You face internal dissent as well as external criticism, and somewhere in your previously mentioned Washington-shrunken-soul you know the dissent and criticism is righteous, hence your prickly little memo.
Finally, sir, do it for the dead, the Americans who died at Benghazi.
If you lack the character and guts to recommend indictment, then resign, sir. Resign.