On two occasions in the past,
I have found two EITC Juggernauts at once (and both times, there was always that one Navy Dreadnought - probably knew one day I would fight four at once). Was always a fun encounter, but I sometimes wish those two EITC Juggernauts were instead EITC Tyrants.
But EITC Juggernauts will always be my favorite (With the HMS Invincible coming at a close second as my favorite)