For me, my books are are broadly either very aggressive (I'm getting a goldfish kill on turns 3-6, which will be a more realistic kill on 6-10 against a book played well defensively) or I'm playing a long slow game. In the former case I sometimes use Battleforge, but at least as often use no action generator, in the latter case I usually use 2 additional action generators (sometimes 1, sometimes 3, but normally 2).
In the case of my Paladin book, having played around with a lot of ideas, the one I like best is playing just a type A Banner (generally their Near Centre on Turn 1), and if that rush is halted, then I have a Battleforge for if I'm forced to a long game.
Personally, I don't like Paladin aiming for the long game from the off, not because he's terrible at it, but because Priestess does it better.