To my recollection, Zodd has never been shown to have an appetite for human flesh. He'll leave behind bloodbaths and piles of corpses in his wake but there's no sign that he actually devours his prey. Quite ironic given his full name. Obviously, Miura is deliberately distinguishing Zodd from the more ravenous and hedonistic apostles such as the Eclipse participants, by showing that he predominantly cares about the thrill of battle, and now the ambitions of Griffith. It's also interesting that Zodd appeared to be (self?)nominated as the gatekeeper of the Vortex. Was that partly because he had no interest in the mindless om nom nom of the Eclipse?
Of course, Zodd is by no means an exception to the rule, as so far the Neo Hawks (Grunbeld, Locus, Irvine) appear to follow suit. However, that is largely circumstantial, and furthermore they are fairly new to the party. There's every chance we'll see their darker sides once we explore Falconia, lest we forget these are the bad-guys.
Of course, Zodd is by no means an exception to the rule, as so far the Neo Hawks (Grunbeld, Locus, Irvine) appear to follow suit. However, that is largely circumstantial, and furthermore they are fairly new to the party. There's every chance we'll see their darker sides once we explore Falconia, lest we forget these are the bad-guys.