It seems like most people are excited for kotlin, but no one is really talking about ceylon which recently 1.0. Im curious why that is, have you looked at ceylon?
I prefer the most conservative, slightly incremental Kotlin myself, but it's purely personal and certainly not a knock on Ceylon, which was implemented by people I have a lot of respect for.
Perhaps that should be "most Groovy people are excited for Kotlin". The reason "Groovers" look at Kotlin before Ceylon could be because Groovy creator James Strachan and Groovy++ creator Alex Tkachman jumped over to Kotlin.