I NEED SAS (SK) - as I need LH. Otherwise there wouldn't enough european-StarAlliance options for me flying out of Zurich.
And I don't agree on SK's so called bad quality on longhaule-flights - they are in my judgement equal in ECO to UA and TG (and above VARIG) - and food is (for my european/swiss-taste better). And in business I rate service quality (including food) above UA and VARIG, equal to LH and Thai, less then AC. ONLY the seats are TO OLD in both categories.