i guide on the lower wisconsin river and i use suckers most of the time .bullheads are a better bait for two reasons . 1 they stay alive longer .2 they are natural bait in that body of water . i do agre that sun fish and blue gills are good bait too .keeping anything alive is tought. i took a 12 inch pvc pipe 24 inches long and put ends on it and a 6 foot cable on it and in keep bait alive for weeks . i have found out over 20 years of fishing and guiding that there is no best bait . . the place you put your bait is more importion .hope to see you on the water . umpie wis river guide service