Even though I don't really own many rods, I've been fortunate enough to be able to handle and fish many different brands of rods from a wide price range from lightening rods to Conquests and Archangels.
IMHO the rods from the price range of $100-$200 all have pretty similar "sensitivity" across all brands. I notice that going down a step in rod power actually provides a higher "sensitivity" boost than changing brands. The difference in a $100 rod to a $200 rod seems to be more focused in the rod handle and guides used than a real improvement in the quality of the blank.
I only started noticed an improvement in "sensitivity" when fishing with rods exceeding the $300+ price mark. Though, not as significant as you'd expect from spending over half a grand.
Offerings such as the Saint Croix legend tournament, Dobyns Champion, or Kistler helium that fill in the $200-$300 market do seem to be a bit more refined, but imo not enough to justify the extra 50 or so dollars. I'd only buy one if they're on sale.
Saying all that, I also actually use a Gloomis e6x casting as my main all round rod. I chose this rod mainly out of aesthetics, rod design, and resale value as I one day hope to save up for a GLX.