Wait wait wait... I want in, too... Quark.
Most everyone else on DS9 pronounces it "qu-ARK" as in Noah's ARK.
Odo pronounces it "qWARk", as in Dominion WAR, as if it's "qwOARk".
Does it matter? Is there a difference? Does anyone else notice? Anyone care??
Well Quark insists on saying HEW-mon, so he shouldn't be one to complain!
But more seriously, maybe Odo isn't too good at making mouths, and that's the closest he can get.
I actually like the idea that there are some variances in pronunciation/accent among the different species. It only annoys me if one character pronounces the same name differently each time they say it. I caught one of those recently in DS9, but can't remember what episode.