A lot of Miles&More members do prefer ZRH over FRA. ZRH is a bit smaller and tidier than FRA. Cannot comment on Edelweiss. They belong to Swiss and take care of routes with less business travel and more leisure travel. They fly the A340 with an interesting seat configuration https://www.flyedelweiss.com/ch/de/f...ion/fleet.html (business class is in the middle of the aircraft between premium economy and economy). J seats seem to be same as on Swiss.