Personally I like this comic and I would give it 4* but the thing that let me down is Nighthawk, apparently he has a loyal fanbase somewhere, the two of them are currently begging marvel for a brand new series,but he was generally a terrible character. Like you said he just wants to be Batman, but I digest all the other characters I liked and the story and especially the art, I loved the art on the last 3 pages the old monster film vibe was brilliant. Hopefully 'Fearsome Four' and 'Back in Quack' won't be the only pages we see Howard the Duck in as you may have guessed I WANT A GOD DAMN HOWARD THE DUCK COMIC!!!
I think your right about the ages thing because for some reason Superman has a new origin every week. I've started reading a few Batman graphic novels and the Grant Morrison run which i've found rather entertaining, I tried Superman but why has nobody thought of a kryptonite gun or sword or even a bomb. I'm waiting on some green lanterns but really i'm a Marvel fan at heart.