As Suds mentioned the reel will make the difference in your decision.
The reason for the differences in rod length is this. With the longer rod and lower gear ratio reels you can really crank on and can apply that pressure over a longer lifting arc, thus retrieving more line and keeping heavy pressure on the fish. With a high speed reel the extra leverage provided by the shorter rod is needed.
So in theory lower gear longer rod and higher gear shorter rod.
I own this tica.
UEHA630502C 10'0"(3.05m) 2 466 12-30 2-8 FAST H B Graphite
I use it for chunking big bunker heads in the surf. It is outfitted with a Penn 9500SS series reel. It is a very heavy setup strictly for chunking big baits with, It is a very sturdy rod that I dont have any complaints at all with. This one you cant use for every aplication.
Definately not for throwing plugs with. Too heavy.
I use an 8 foot tsunami spinning rod for that. The price wont bust your budget either. I dont think that there is any one rod that suits all aplications.
One 6 foot or so stand up boat rod or trolling rod
One 8 foot spinning rod
One 9 foot baitcasting rod
and one 10 foot or bigger surfcasting rod
also White rods are a good idea for night time fishing.