Okay, you remember how in that shitty movie, which doesn't exist because George Lucas died in a car crash in '82, but we all still somehow remember, the characters had to travel through Naboo's core? You might be able to do that with Enceladus' core.
So are we more excited about Europa or Enceladus? I guess Europa is much, much closer. Even our own oceans still have plenty of mysteries. It is almost alien to us land breathers.