oh yeah, definitely. I use stick exclusively for everything except 3S, where I'm still transitioning off pad because my stick execution still isn't where I want it to be. More and more I've just been playing on stick in that game as well and I think I'll be stick only within a month.
But I like using fighting games for testing dpad response, since you won't find many better ways to do that. It's not a huge deal since I play FGs on stick anyway and for everything else it doesn't seem to be a problem, I'm just being a little over-sensitive I suspect. But it'd still be nice if it wasn't an issue! The Wii CCPs are ideal in every other way, after all. Decent sticks, nice buttons, and the adapter to PC doesn't lag at all as far as I can tell. this weird dpad ghosting issue that only happens on some of the controllers is my only complaint. if I can get it resolved I'll be a happy camper.
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http://www.youtube.com/watch?v=npHDxSvwCE0