Personal preference from me, after having sat in all 3 PE products - i’ll go with BR.

comfortable hard product, the cushioning feels more significant as compared to sq (which matters most in a long transpac flight, sit better, sleep better) dedicated lavatories for PE, and friendly warm crew.

transit at TPE also has dedicated lines for PE and *G pax.

The only con is the not-so-good selection for IFE. But nothing major if you have your own netflix content or work to catch up on.