I don't get the impression that Cornell thinks he's "stuck" on Demon Knights, which is one of the better titles in the 52. The only title I liked more was All-Star Western - Wonder Woman and Justice League Dark were good runners-up. That being said, Perez was a weird choice for Superman.
I was underwhelmed by the first issue of Justice League,...
I share your opinion that Demon Knights
and All-Star Western
are among the better books of the relaunch. Both far exceeded my expectations, which frankly as good as Jonah Hex was before the relaunch(considering it's also the same creative team) they really pulled out a great story for their relaunch. I don't get the love for Action Comics
at all though.
I too was underwhelmed with Justice League and am waiting on the TPB, it's my first drop. I even liked JLDark
better, way better.