I've certainly thought both, but the "I will never again" statement is the primary focus. It was off the table for me Feb 22, 2016. Done.
When I say "I won't drink today," it's a note-to-self that I could on any given day, or because I heard something especially moving/sad/true/whatever in a meeting or here, or because I just need an extra reminder. It keeps me humble and brings me back to the "never again" statement.
As many have said, I know I have another drink in me (that cunning and baffling part there), but I know I don't have another recovery.