I have flown both Eva Air PE and China Airlines PE in the last year, and found the Eva Air seats to be much more comfortable. The 2-3-2 config on the CI A350 was nice, but the seat was very hard imho, and I don't like the ergonomics of the sliding shell seat. The CI food was better. I am also *G and the lounge access was also a plus point for me. I am planning to go to SFO-SGN and SFO-BKK in 2018, and will use Eva Air for both trips. Eva has PE on the intra-Asia legs to both destinations from TPE. CI now only puts you in Y on the lowest PE fare, as someone said. When I flew them last year SFO-SGN, the TPE-SGN leg was in J. They stopped that right afterwards I believe.