Originally Posted by
radiowell
You know, this is not easy to rank, even within one airline.
For example, UA 777 alone has 6 versions!
Yes, but only two long-haul seats and service levels to compare. A few of the six there do not exist anymore or will very soon be retired.
The US A330 Envoy Suite seat is very nice. I'd take that over any of the UA options for seat comfort. And then the sCO flat seat (preferably bulkhead) on the 777, 767 or 757, the sUA flat seat (777, 767, 747) then the US 767/757 options. That's just my ranking within that small pool. There are many more to consider.