As with everyone else, it depends. I still like the Beast Boy mini that Justiniano drew back in 2001 before all this crap was revealed, especially since he gave Flamebird a cool new costume, after she Took a Level in Badass
. But if it came to a new book by him... yeah, probably not.
Meanwhile, I would gladly buy any Dixon book I was interested in. Chuck's never let his love of guns stop him from writing gun-hating Batman AND Nightwing AND Robin AND Oracle/Black Canary well. And I admire him in general for writing all those surface-similar characters so distinctly on such a consistent basis. So he gets the thumbs-up.
As for Card, since he's mentioned outright that he puts the money he earns towards his... questionable causes, I might buy something of his secondhand, if at all.