RE: Most adjustable bow?
I believe most all of the new Browning bows have somewhere around 5" or 6" of draw length adjustability. And they can be changed without the use of a bow press. Simply remove 2 screws, pivot the module around, and reinstall the 2 screws.
The only exception might be the Mirage 1.5, their new cam & 1/2. I think it might only have 3" or 4" of adjustability but it can still be done without a press.