Hello. I am flying back home to the US and am trying to decide between three different options, all of which are in business class. And all have convenient times, with very similar departure and arrival times. What I am asking for advice on is which plane/seat is the most comfortable and which will have better hard and soft services. Here are my options.

1. United Business Polaris 777-200
2. United Business Polaris 767-400ER
3. Lufthansa Business 788-9

Thank you