Well like Bigmouth said there are 100's of Rapalas.
You need to mention which Rapala you will be using, crank bait, skitter pop, dying flutter, rattle trap... and so on...
I fish crank baits on a medium 6ft rod with a (spinning outfit)
Top waters mostly 6.3-1 Baitcaster on a 7ft medium heavy to heavy rod.
I would also fish a deep diving crank on this outfit!
thats a small report I can give on this, Im sure the rest of the fellow sealiners will give more input on this.
Im too lazy to type! LOL