I've been using the Citi Executive card because of the features:
Full Admirals Club membership (including access when not flying, access to QANTAS Clubs in Australia when flying QF, and those lounges with reciprocal access such as FRA Sakura Club, AS Board Room access, etc. (conditions always apply).
No foreign exchange fees when spending overseas or foreign-located businesses and EMV chip (chip and signature, not chip and pin at this time.
10,000 EQM if you have purchases of $40,000 by the December account report.
Two miles per dollar spent on AA.
25% discount on in-cabin purchases on AA and US, and a bag waiver for cardholder and companions, priority access, etc.
http://www.aa.com/i18n/AAdvantage/ea...-executive.jsp
For me the forex waiver is quite useful, beyond the Club access / membership issue. The less useful ones to me are the EQM (they're countable for status, but iirc they are not accounted for as redeemable miles and I qualify on EQP before I qualify on miles), the priority access etc.