There’s so much more to a “good” rod than just it’s ability to transmit vibrations.
Everything in rod design is a compromise. Want the most sensitive rod possible? Make it out of 100% the highest modulus graphite available. You’ll end up with a rod that can transfer vibrations like no other but would disintegrate after the first hookset. Want a rod a rod that could be used to beat dust from throw rugs? Go low mudulus graphite or a blend of composites / fiberglass & fillers (you basically get yourself an ugly stick… lol) and you won’t be able to feel much of anything but it will last forever.
Balance is often overlooked during the process of choosing a rod and it is one of the most critical. Most people test rods without reels on them and this is a bad practice as rod manufacturers design rods to counter balance the weight of the reel to achieve a neutral pivot point in the hand of the angler. (Actually, I prefer my rod to maintain a tiny tip-heavy bias) Without a reel attached a rod is horrible tip heavy and this will force anyone testing a rod to fight the tip. The rod will feel heavy and akward in your hand as the tip dives for the floor and you use your hand and wrist muscles to keep the rod in a position parallel to the floor. If you’re fighting to keep the rod under control how well can you put to use the design and materials built into the rod?
The best way I know to test a rod is to bring your favorite reel, loaded with line, to the shop. Put it in the seat on the rod you’re looking at and string the line through the guides. Next, take a split shot and crimp it to the line. Make a little pitch cast down the isle and feel how the rod balances in your hand when you slowly drag the shot back to you. (If the floor is carpeted, so much the better as you’ll feel every last change in texture with a good rod.) Can you feel the shot as it drags across the floor? Does the rod feel heavy and clumsy or light and responsive? If the rod transmits vibrations well but a little tip heavy, the rod may call for a larger reel to balance the combo or maybe some quarters will need to be taped to the end of the rod handle to achieve a neutral pivot in the hand.
IF you really want to compare rods, try this. You’ll be able to tell a a good rod from a GREAT rod and leave the store knowing that you’ve matched your reels to your rod and achieved the best rod and reel combo matched to the way you fish.