Looking at the DEL I don't think Berlin are going to get across the line to qualify this year, unless they win the play-offs.
I'd love to go back to Switzerland again, and don't really mind where the other team are. Would be nice to be able to do the trip like last September so Central Europe would be best.
As for the value of playing in the competition - you only ever improve by playing against teams who are better than you. And that's leaving aside the draw of playing in top level competitions to players who might otherwise overlook the British league.
Also, I would strongly advise anyone who has never been to do a CHL trip. It's usually warm, there's beer, friendly faces and hockey. What's not to love?