DW is a good one. To get a huge jackpot requires decent progression through the multiball layers AND multitasking the side ramp shot to keep the playfield multiplier high at the same time.

JP also has a pretty deep multiball where the super jackpot is worth a mint, and it is multiplied by how many of the six balls are still in play. I owned mine for a year and I only once managed to score it.

And another one that is probably a lot lesser-known is Dr Dude's Double Jackpot. After you drain out of a multiball you get a 2x playfield multiplier lit for the remainder of the ball. If you can manage to work your way into another multiball in the same ball then the jackpot will be a Double Jackpot. I'm lucky to score a jackpot in a single game! Let alone scoring a jackpot in a second multiball *all in the same ball*. So I've only seen it once