I think this comes back around to tempo and clock management.
Strategically thinking (that is, my prescriptions are teleological rather than ethical), I think that if you are the bash team and you can score by turn 4 or so, you should do it. If your opponent is slow and you can safely stall until turn 5, you should do it. If your opponent is fast, and you can't score with one or two more turns than you need to score again, you should stall until T8, unless you received first this half and your opponent has a reliable 1TTD, which is pretty rare. There are also secret weapons and the like to consider. If my opponent didn't field a SW in the first half, and I've got him down men, I want to stall out so the SW only gets one turn of use. Stalling with a lead is generally unwise, as scoring is a more reliable way to preserve the win. Stalling from behind is also a poor strategy; the way to come back from a deficit is to score on O and D. Stalling from a tie is as good as your confidence in your ability to stall.
Joemanji wrote:Some teams, e.g. Woodies, Skaven, especially Pro Elves have a near guaranteed 2-turn score. There is no merit or value in allowing someone the chance to beat you for some utterly subjective notion of "fair play". A monkey could score a 2TTD with Pro Elves. Ooh ... I haven't rolled snake yes. Well done me.

IME, this is a real concern, greatly exaggerated. It's pretty much impossible to stop a well-developed PE team from 2TTDing with
some reliability, but if you can hold 'em out you can stop the score. Leap x2 is a threat, but it's only 4/9 to work, assuming no T7 TRR. And every once in awhile, you just get that game....
What is Nuffle's view? Through a window, two-by-three. He peers through snake eyes.
What is Nuffle's lawn? Inches, squares, and tackle zones: Reddened blades of grass.
What is Nuffle's tree? Risk its trunk, space the branches. Touchdowns are its fruit.