Miles & More (Lufthansa, Austrian, Swiss, and other partners) - IST-VIE-CPH or IST-ZRH-CPH in C?

I have to choose between OS IST-VIE-CPH or LX IST-ZRH-CPH in C (M&M award booking). LX is slightly cheaper in terms of tax, but travelling and transfer time is shorter with OS (only 55 min).

OS is on 737-800 to VIE and A321 to CPH. LX is A321 for both legs.

Any thoughts in terms of service, seats, transfer at VIE cfr. ZRH, etc.? Thx

I would choose Swiss, bcoz of the legroom ... the OS 737 is horrible legroom even in Business..... And Im only 1,70cm ... Avoid OS 737 !!!

The food on OS is more tasty then LX, but LX also serves nice meals...

I would choose Swiss, bcoz of the legroom ... the OS 737 is horrible legroom even in Business..... And Im only 1,70cm ... Avoid OS 737 !!!

The food on OS is more tasty then LX, but LX also serves nice meals...

+1 for LX for the excellent service and nice food.
Would prefer to connect in VIE rather than ZRH though :-(

+1 for LX. I hate the OS 737s - the seat pitch is horrible, plus service on LX is usually great.