I'm not sure which of these (perhaps all?...) are places you want to go (=stop) versus connecting points on the way to somewhere else. However, if you want to maximize point/SC earning, there may be ways to re-work the places/sequence depending on where you want to get to and in which sequence. As you are presumably interested in QF SC earning, I'm not qualified to help but others (e.g., number_6) certainly are and can offer advice if you think your proposed itinerary is open to tweaking. For example, going LHR-DFW or LHR-LAX rather than LHR-JFK and then working your way back to JFK (assuming New York is a stopping point) would certainly be more miles and SC. I know number_6 has some strong views on DFW versus LAX .... (although in the context of coming from Oz, not from LHR) but my knee-jerk is that starting LHR-JFK-DCA-ORD isn't doing much to maximize the points/SC (assuming that is an objective).