I shoot tons of Acros... my favorite film.
First developer choice is Rodinal (now Adonal or R09). Second would be Ilford DD-X.
The shelf life of Rodinal (and its newer incarnations) is almost limitless.
We've had reports of people using concentrate that's 40 years old or more with normal results.
One important point about Rodinal:
The minimum amount of concentrate is 10ml per 80 square inches of film, regardless of the dilution.
Depending on your developing equipment, this may influence your choice of dilutinos (I prefer 1+50).