It really depends on the size of the fish you're after and how selective those fish are about what they eat. I've gotten many good sized crappies on a number 2 or 1 aberdeen hook with a fathead minnow, although I like the light wire wide gap bass hooks more. Then again I've gotten some good sized crappies on a #14 or #16 size jig with plastics. I suppose it's about using the right sized hook based on your bait of choice.