Bow and Arrow.
Any spinner may do well if you adjust it to the best. I prefer the ones with the soft copper blade under the playfield to go up and down to make contact to the other blade.
After fine-tuning the spinners on my Bow and Arrow one good shot may be enough to make the ninety spins needed to max the bonus to 10,000 and you can go for the extra ball.
Needless to say powerfull flippers themselves will add a lot to the spinner action.