Keeper, BK2K. This game is just fast and furious pinball joy that has a great balance of risk vs. Reward. It has sentimental value to me as the first pin ever played too. But I play it the most and it just doesn't get old.
Of MY pins, the most overrated would be.... If I HAVE to choose. Firepower. But it is phenomenal for it's era. It's just really simple. And while that's part of it's charm. I think it is a touch overrated though.
Of all pins I have played. I think TAF is the most overrated. It's neat, but I think I would probably trade it after a while.