So tough to break it down to just 3 setups, but below would be my 3 top picks.
6'6"-7' medium fast action spinning rod for weightless plastics, dropshots, shakeyhead, tubes, etc.
2500-3000 size spinning reel
8-10lb. test fluorocarbon OR 15lb. braid with a 8-10lb test flourocarbon leader around 10ft in length
7' medium or medium heavy fast action casting rod for spinnerbaits, chatterbaits, swimbaits, lighter texas rigs
6.3.1 bait casting reel
12-15lb. test fluorocarbon
7' heavy fast action casting rod for heavier jigs, texas rigs, frogs, flipping and pitching
7.3.1 bait casting reel
65lb. braid and 15-20lb. test fluorocarbon depending on what kind of cover you're fishing