Hello, I'm a DL GM, and I'm considering matching it with either TK or A3, for *A Gold. Which one, do you think, I should go for? (EDIT: easier to retain, no issues using the *A Gold benefits, etc. (for example, properly showing the gold status on the boarding passes, etc.)).

Also, do you really get *A gold lifetime if you match it to A3? And, do they do status matches?

Thanks!