Hi gcd123
I don't believe this is a valid itinerary as it doesn't seem to go around the world... that is there is no continuous forward flight around the globe (I was looking in your itinerary for a flight to north or south america).
Rather you have gone from Europe, to Asia to Australia and then backtracked to Africa (instead of going in one fwd direction).
The advantage of going via the USA is that you can fly first class on AA, which gets lots of SCs very quickly. Even if you don't need them for plat in one year they do count towards lifetime gold (if you don't already have that).
Regards
lme ff