User blog comment:FairyRaven/Fairy Tail Chapter 362: Natsu vs. Jackal, Review and Commentary/@comment-31.132.65.50-20131129140428/@comment-7418318-20131129170618

On the other hand Lyon is the one who Fairy Tail had the most interactions with, so maybe that's why he came before Jura.

While Jura might outrank him, Jura also tends to keep to the background a bit, while Lyon seems to like the spotlight position.

In Mermaid Heel only Milli appeared before, so I guess it'll either be her of Kagura.