accuracy vs RSSI to compare proximity to iBeacons

Hi, I want to see which iBeacon is the closest in a medium-sized radius (I don't care about actual distances).

CLBeacon has a proximity property –- but if two iBeacons have the same proximity enum value I'd like to disambiguate using one of CLBeacon's other properties. Should I pick the one with the smallest accuracy, which per Apple's docs should should decrease with distance, or should I pick the one with the highest rssi? Or a mix of both?

Thanks in advance!

accuracy vs RSSI to compare proximity to iBeacons
 
 
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