I have a somewhat different take on this for several reasons:
1) I'd rather have a connection in Asia than in the US on the way back from Asia to avoid having to collect and recheck my bags in order to clear customs.
2) For international-to-international transfers, TPE has free airside skytrain between terminals that the other airports in Asia and the US generally don't have (some airports have shuttle buses but they tend to take much longer).
3) Lounges at TPE aren't great, but they aren't, generally speaking, any worse than those at the other listed Asian or US airports.

For visiting (rather than transiting) Taipei, I generally choose to fly into/out of TSA instead.