I've used 782-3-4, 842-43-44
Most versital rods loomis makes are the 783 or 843. These two will do all things well. the 782 is a good crank/jerkbait rod like Raul said but imo to light for alot of other fishing like jigs, s/b, plastics, bigger cranks, traps.
That is what I would buy. If you fish open water tet the 7', less open 6'6". I dont like fishing a 7' rod then switching to 6'6". I prefer them all real close in length.