Thats like asking what cranking rod do you prefer. It really depends on the individual and type of frog fishing. 7'3 is probably best all around length
So you use different length rods depending on what frog you are throwing? Can you explain with details? All the hollow bodied frogs I throw are very similar in size and weight as are the solid bodied frogs with the kicker legs.
The crank baits that I throw vary in size quite a bit from a 1.5 square bill to a 10XD. The rod I use for the 1.5 would never be able to handle a 10XD.
I didn't realize it varies that much throwing a top water frog.