Does not matter. Do note that different agencies have different names for the course that is equivalent to PADI AOW.My family was just certified through SDI, and my son has already asked some questions about advanced.
So I started think about the logistics of getting him through an Adv OW class efficiently...I mean like wrapping up the whole thing on a weekend trip somewhere rather than doing it through the local dive shop. Is it even realistic or possible these days to do the whole thing in a one-day or two-day weekend trip to a dive destination?
and that thought process led me down the path of wondering if it would be easier to just stick with an SDI school, or does ot really matter?
For example:
These three all require 5 dives including nav and deep [edit - SSI doesn't actually require nav and deep, but all responsible ops do. I would avoid any course that doesn't include these dives unless you also have done or are planning on doing the full nav or deep specialty course.]
NAUI recently changed their course name from Advanced Scuba Diver to Advanced Open Water Diver, some ops still show the older name. They require 6 dives including night (or limited viz), nav and deep.