I like Twilight Tide. Easy to remember, easy to spell for the listener, not embarrassing or unclear at the seaman's bar or Yacht club and it evokes pleasant thoughts.
Our second choice was from the movie, Princess Bride: "True Wuv", as we were single at the time, engaged later on a Power Squadron Shakedown Cruise (at ages 68/66). But, I just didn't feel right about radioing a veteran tug Captain with a six barge tow, "Island Point tug, this is motor vessel True Wuv 400 yards aft calling for permission to overtake to Starboard".....
My choice for our trawler was "Boatwright", my maternal grandmother's maiden name, and a name of artisans essential to the vessels we love. It is represented nicely in the Tapestry of Bayeaux, documenting William the Conqueror's crossing English Channel to invade England in 1066. William rewarded his officials with land grants in southern England and that is where the name "Boatwright" first appears, likely his "Bat Wyrtha" and "Batvrais" in old English and Norman French. Normans- Norse Men, were Vikings who settled on the coast of what is now France. So, as one Poster noted, a family name can be a good choice, and in this case, a nautical name, and Boatwright also can be interpreted as "the Right Boat", which it is for us.