Hi all, I was wondering if you could help me with my dilemma. In short: I found myself back in a job where I travel regularly enough to easily earn and maintain A3*G. I have begun wondering whether I should credit any miles beyond that to another FFP.

Specifically I am wondering whether I should start building up towards Lifetime Star Gold. So, my real questions are:

1) Which airlines actually offer Lifetime Star Gold? (I can look up the requirements and limitations myself, grateful if you could point me in the right direction).
2) Is it worth starting from scratch to accumulate on such a programme (beyond my A3*G qualification requirements)? or
3) Should I just keep crediting to A3 (to build RDM) or to another Star porgramme where I already have a stash of miles? (approx. 150k each on A3,UA and approx. 300k on LH)

My answers to the "guiding" questions:
(1) What is your home airport? LCA, for now.
(2) What types of fares do you usually buy? various Economy fares
(3) How many miles do you usually fly each year? 35-65k
(4) Do you have any kind of status at present? What is it? A3 Gold
(5) What is most important to you in a FFP? Priority services, lounge access, good redemptions (incl. no high/excessive surcharges)
(6) Which routes do you fly most often? A3/LH/OS/SN/LO, currently mostly within Europe.
(7) Preferred Airlines: any Star Alliance is OK
(8) Do you travel for work or pleasure? both, currently mostly for work.
(9) Can you chooose your airlines? Yes (work travel is all Economy)

Grateful for any help!