AlmightyKfish
This Is No Longer A City.
It's basically been said already but yeah, Marvel's unified approach in regards to tv/movies etc is a huge boon for them.
While it's not an issue now, when DC's cinematic universe comes out I'm almost certain there will be people confused by the multiple versions of things between that and their Arrow/Flash shows. Not places like here where people follow this stuff in far more detail, but in general.
In regards to the actual quality of the shows, I can't speak for Agent Carter but Agents of Shield has massively improved from where it started. Plus Daredevil looks like it's going to be awesome. Flash is really, really good but Arrow makes my teeth hurt at times as it tries to be Batman. I still haven't finished Constantine but was enjoying it to some extent, but as a huge Hellblazer fan there were bits of it that annoyed me, but I think when assessing these shows and movies and stuff we as comic fans need to step back a bit and be a bit less critical about specifics. I mean lets be honest, Marvel/DC now have a much bigger audience to appeal to than just comic readers. Whether it's a good or bad thing that they're doing that is personal opinion.
But yeah in movies I think it's almost impossible to say DC are ahead, at least in terms of public appeal and success. I mean they're slowly building their universe but honestly I think it has issues. Personally for me Superman and the JLA don't need to be darker and grittier, I mean it's Superman ffs. Sure Batman can work that way, and you look at his best stories and they are darker affairs. But look at the best Superman stories and you get things like All-Star, Birthright etc which are pretty bright affairs. Sure they can be serious at times, but I think people have a tendency to confuse that with 'dark and edgy'.
Just my two cents.