Originally Posted by ericcheung

My view is that if the OP wants some new experiences, take the AA F route.

However, my personal preference is US J. the shorter time, my preference of a US domestic connection vs an LHR terminal shuffle. For an overnight flight, most of the time is sleeping, and i find the US J seat as one of my favorite seats for sleep.

Life is too short to regret. If you want to experience the LHR lounges, and AA F go for it.