A lot of hatred for the organization seems to stem from this one character. So my question to all hardcoe Skyrim fans out there is do you truly hate the Blades organization as a whole or merely just Delphine?

It seems a good number of people side with Parthurnaax and the Greybeards merely to spite her. However its important to remember that you encounter (excluding those you choose to recruit of course) just two members of the decaying order. Esbern is senile old mage scholar with not much of a lifespan left, so its kinda hard to see him playing any type of prominent role after Alduin and the dragon threat has been neutralized. Personally Ide be more inclined to trust and help rebuild the organization if Delphine wasn't such a cold, rude, arrogant [censored] with questionable motives. Its almost solely because of her that I choose forgo the recruitment missions and completely ignore the duo after the MQ has been completed.

Just Delphine, but too many people use her as an excuse to not immediately spare Paarthurnax (making her into the Blades)

I dont really hate the Blades as a group, more like dislike them. they don't interest me in any way.

But yes i hate Delphine.

Considering that there are only three members left (in Skyrim, at least) and they don't have much of a purpose left outside of killing dragons, I can't say my Dragonborn has much use for them since he's not a hardcoe dragon-hater.

Personally, I don't 'hate' the Blades, I just dislike them and their fanatical hatred of dragons. (Which isn't entirely misplaced, but still) It wouldn't matter if Delphine were a polite young woman, I still wouldn't side with them. Besides, it was Esbern who first came up with the plan to kill Paarthy. Delphine just backed his decision.

Just Delphene.

She's far too full of herself to understand that, if the Blades are there to serve and guide the Dragonborn, and if the Dragonborn refuses to (immedately) kill a specific dragon, then they should at least listen to the reason the Dragonborn wants to allow a dragon to live.

Both, but Delphine's stubborn behavior doesn't convince me to want to join them either. If Delphine wasn't existent at all, I would likely spare Paarthy anyway.