I'm somewhat familiar with the General Relativity description of gravity, at least conceptually. So I thought I'd ask about the graviton theory of gravity. Specifically, I've read elsewhere that a graviton must be a Spin-2 boson. Okay, given that as it may, how does a spin-2 boson differ from a spin-1 or spin-0 boson? What is the difference in behaviour between these three types of bosons? Also, all of the familiar force carrier bosons, like the photon, the gluon, the W & Z bosons are spin 1, while the Higgs boson is spin-0, I gather. So what is it that makes the photon, gluon, and W & Z similar to each other, while being different from the Higgs, and how are they all different from the graviton? Also do any of the graviton theories come close to reproducing General Relativity? Somewhere I read that graviton theory so far only reproduces Newtonian Gravity, rather than GR?