British Airways Executive Club Bronze and oneworld Ruby members now receive priority boarding as a new elite benefit and can board the plane after first class, Club World and Club Europe travelers. Bronze members also receive priority check-in at Club World/Club Europe check-in counters and the ability to reserve seats for free on British Airways flights starting seven days prior to departure, among other perks.
Bottom line: Bronze level was introduced in 2011 and Executive Club members are welcomed into Bronze membership when earning 300 tier points plus two eligible flights or 25 eligible flights. Silver and Gold are the higher elite tiers. When this new priority boarding benefit was announced, it was not stated that Silver and Gold would have a higher boarding order than Bronze.