I found LX J to be very good both hard and soft.
It's good to have different opinions.
I would say TK J > LX J (though English language skills of TK staff ex-TLV leave a lot to be desired).
ZRH > IST (airport) by a wide margin.
Didn't have enough of an experience in the ZRH business lounge, which seemed nice as I joined a minyan elsewhere in the terminal. IST TK business lounge is huge, excellent showers and sleeping suites if your connection is the right length (longer than 4 hours, shorter than 7 hours IINM).