Hey people. Im a YN veteran here, ever since about it came out, and I was VERY interested in exploring the game and getting all effects and naming EVERY creature. I made a list for what I named the creatures between 04' - 06' or around those years. Just my opinion on the names, I like abstract concepts and symbolism, so here goes nothing. I'll work my way down in terms of popularity among the fandom.
Uboa = To be honest, I couldn't think of a name for this guy, so I just went with "Frightful"
Madostuki = I always knew she was Madostuki, but I called her "Window" for some reason.
Poniko = Beauty
Masada = The Isolated Musician
Monoe = Sister
Monoko = Disfigurement
KyuKyu = Abstract
FACE = Didn't name it, he looked like a pattern or static more than a creature.
Toriningen = Guardians
The Thing With The Quivering Jaw = Entrapment
Shitai = Accidental
Big Red = Hunger
Steve "Leif" Kareha = Took me a long time to find out this bugger exists, but I named him "Travel"
I found most, if not all creatures, but those were all the symbolized names. All other names were random things I could think of, like Shikyuu = Watching or Tokuto-kun = Drip Drip.
If I had photoshop and free time I could make my own version of the chart, but nobody cares, all the names are decided (and quite nice, might I add).