AA has one world awards based on miles flown. For example, CGK - SEZ would count only as travelling 3520 miles (which means using 35 000 economy or 75 000 business) even though the routing would be CGK HKG JNB NBO SEZ (11 780 miles) or possibly CGK HKG LHR NBO SEZ, so it is only the distance between start and end point. You can have as many points as you like, and you have to be sure to use at least 2 different carriers in order to use the ticket.
Details here:

http://www.aa.com/apps/AAdvantage/Vi...artnersContent