Who would win?

something something indomitable human spirit

The bloodfiend hierarchies

They vary a lot and possess vastly different abilities, even in the same hierarchy, so I'll just tackle the average of each one.

Original Kindred
They are extremely strong and powerful. They live for thousands of years, they are commonly thought of as the first bloodfiends ever.
Abilities:
-Resuscitation, they can thread veins made of blood into a corpse and resuscitate it. This can only be done once for each person. The resuscitated's consciousness varies if the corpse is fresh or not.
-Transformation, they can transform humans into bloodfiends of any hierarchy they want. Most commonly First Kin.
-Blood weapons, they can create weapons out of blood. They may seem brittle but they are very dangerous.
-Blood attacks, they can group up blood to make powerful long range attacks, commonly referred to as "nukes".
-True Form, they can access bloodfiend's true form easier than anyone else. This greatly enhances everything previously mentioned.

First Kin
They are the children of Original Kindred(if one of the parents is also a First Kin), or the transformed humans of a Original Kindred. They often are leaders of big nations of bloodfiends.
Abilities:
-Transformation, only for those who are Children of Original Kindred. Transformed humans become Second Kin.
-Blood Magic, this is where stuff varies a lot. Some have more supportive magic, others have more offensive magic, or defensive; Examples are actively buffing allies, producing even more powerful blood weapons, being able to use their true form like if it's nothing or being able to manipulate blood to create blade like appendages(usually someone without an arm does this)
-Blood weapons, they can create weapons of blood. Again, they may seem brittle, but they can chop.
-Blood attacks, a little weaker than the aforementioned "Nuke".
-True Form, they and their children have easier access to their True Bloodfiend form.

Second Kin
They are the children of First Kin(needs to be with a Second Kin) or the transformed humans of First Kin. They are usually clan leaders and also the commanders of legions.
-Specialised blood weapon mastery, basically blood magic but strictly tied to a weapon.
-GREATLY enhanced strength, endurance and speed, the type that lets you lift a car.
-Blood weapons, they can create weapons of blood. Although they only can summon one type unless they train to create multiple (it's like learning to paint, it's hard to learn then to sculpture)
-Blood attacks, some blood attacks but nothing special.
-True Form, they can quickly use it for sudden bursts of power.

Third Kin
They are other important figures. The children of Second Kin.
Abilities:
-Enhanced strength, endurance and speed.
-Blood Weapons, same stuff but a lil weaker.
-Blood attacks, same stuff but a lot weaker.
-True form, eh kinda the same.

Normal Bloodfiend
They are the children of Third Kin(if it's with another normal bloodfiend) or the children of other normal bloodfiends.
Abilities:
-Blood weapons, they can create blood weapons but only one at the time. The stronger the weapon, the harder it is to handle.
-True Form, they can slowly gain access to their true form, first appearing as blood clots, shards of ruby-like blood on their skin, clothes and weapons, then with their true form.

Specifications, True Form.
The True form of bloodfiends is as follows:
Black skin with veins shining through, bright eyes and tendrill-like hair.
Claws are sharper and longer, and so are teeth.

The midget red goob

🗣 😤😤THE HUMAN RACE CONQUERS THE COSMOS, WE DO NOT BUCKLE OR YIELD, WE SHALL NOT KNEEL TO ANY BEAST, FOR MANKIND WILL BREAK THE WALLS THE UNIVERSE AND REFORGE IT TO OUR LIKINGS USING NOTHING MORE THAN METAL AND WIRES. OUR MACHINES SHALL ROAR, OUR GUNS GLOW, OUR HEARTS THUNDERING LIKE DRUMS FOR ALL ETERNITY!! LONG LIVE HUMANITY, OOHRAH!! ✊✊🗣🗣 (Humans :3)

Didnt say humans wont fight back

Ik, that's me hyping the team up lol

If we're talking about the humans from my verse then definitely them. But here I think the Princess girl alone would be enough

She is just a supportive type. She wouldn’t be able to do it by herself.

Oh. Then probably another older one

There are also powerful humans that can take down bloodfiends. So it’s human race vs bloodfiend race