Lifetime Admiral's Club access is the big perk for QF (14000 point level). As far as I can tell the only other plan to offer lifetime lounge access is DL at 4MM. DL used to count all miles (like AA) but now only counts flown miles (actually MQMs) so there will be very few with 4MM at DL (it takes 40 years at top-tier status, while QF will take me just under 3 years at present rate, and I'd make it in 2 years if I didn't also use miles to reach AA status). Are any of the other plans offering useful lifetime benefits? Lifetime US lounge access is worth a fair bit.