Here are the DC projects/characters, which, for my money, would make for great shows and also, potentially, attract a more diverse audience.

Casual viewers may wonder why a show set in Gotham has hardly any Batman (and not even very much Commissioner Gordon), but Renee Montoya and Crispus Allen would soon win them over. It also has an incredibly diverse cast and would make for a brilliantly original police show. Why aren't DC putting this into production right now?!

Any Teen Titans team would work, but my favourite was always the New Teen Titans line-up: Dick Grayson's Robin/Nightwing, Donna Troy, Starfire, Raven, Cyborg and Beast Boy, with Wally West's Kid Flash and Roy Harper's Speedy/Aresnal popping up here and there. The wealth of back-story would be a problem, but with smart dialogue, a good mix of drama and action and a healthy vein of comedy (and a budget big enough to cover a green guy who turns into animals) it would be, well, the new Buffy. It would attract a hefty teenage - and female - audience.
Zatanna

Plus, because's Zatanna's character mythology isn't set in stone (unlike, say, Superman's), the series would have more freedom to create friends, love interests and villains for her, all things that Zee's been lacking in comics.

Writer: Oh, so many British writers who I'd love to see tackle Hellblazer. Mark Gatiss has the gothic sensibilities, Steven Moffat has the smart plotting, Paul Abbott has the realistic grit. But I think their best bet may lie in persuading Jane Goldman to take a TV job.
Secret Six

Writer: It seems impossible to imagine anyone but Gail Simone writing these guys. But I reckon Ben Edlund (formally of Firefly and The Tick, currently writing the weirdest - and best - episodes of Supernatural) would do a great job.
Catwoman

Writer: Veronica Mars and Cupid's Rob Thomas.
Booster Gold

Writer: Ben Edlund would be pretty good for this one too. Damn. But I'll go with Reaper's Tara Butters and Michelle Fazekas.
Blue Beetle
This show would have a fun, young feel, all teenage angst and action.
Writer: Oh, alright. Josh Schwartz can have this one.
Wonder Woman
Just because David E Kelley's version didn't work, doesn't mean DC should abandon Wonder Woman altogether. I'd like to see a take on the character that wears her Greek myth background with pride and actually features the other Amazons. There's humour to be mined from Diana arriving on Earth for the first time, a fish-out-of-water tale, and Kelley's version missed a trick by having her already settled on Earth.
Wonder Woman should have humour, heart and heroism, and I'd love to see her brought to the screen properly.
Writer: Former WhedonVerse writer, BSG and Torchwood scribe Jane Espensen.