Re: Vampiric Incompatibilities
First, it depends on how you define vampirism and vampiric tendencies. Sel's definition of vampirism, for instance, includes just about everyone and everything. So does defining vampirism as "energetic need", which I've also seen.
My personal definition of vampirism (since I feel defining it too broadly renders the term meaningless) is an energetic need that can only (or mostly only) be met by prana, life-energy, the refined energy that living organisms (generally human-type bodies in particular) give off.
"Elemental vampires" do not, I think, qualify as vampires, because almost everyone has energetic need at some point or another in their lives, and most people can feed off of elemental energy (and do, in day to day life, as part of the natural process of taking in and cycling and giving off energy). Therefore, defining people with an energetic need who can process raw energy effectively as "vampiric" broadens the definition of vampire beyond usefulness, IMO.
(Hopefully no one gets too upset at me for my narrowness of definition. But that's how I look at things.)
Now, that said... Are there species that rarely have vampiric tendencies? A surplus of energy, or low energetic need, or very rarely (if ever) require prana?
I'd say a lot of therians classify here, at least the mammals, at any rate. Most therians I've met have a surplus of energy; they are very connected to the elemental forces of nature, to nature itself, to the earth, and can draw a surprising well of energy from there. Some vampires I know refer to therians, half-jokingly, as "batteries".
Not all therians, though, are exempt from energetic need and vampirism. Just a lot of them are. Reptiles and birds tend to have a higher energetic need, by my observation, and it can sometimes manifest in a vampiric way.
Otherkin in general, the ones not native to this plane, the mythics and such - they tend to have a higher energetic need, almost vampiric (though many of them can process raw energy, too). They've got odd subtle bodies/energy bodies that process energy differently than a normal human subtle body, and often aren't built for this plane of existance. Many are used to a higher frequency/refinement/resonance of energy that is much easier to get to than here, and so have to compensate for the energetic difference on this plane. So you get a lot of vampiric angelics, vampiric fae (and I have my own theories on fae being integrally vampiric by nature anyway), and certainly vampiric demons, to name a few.