Yeah, I think Morrison is trying too hard to reinvent Batman with this high-concept, "let's combine the goofy Silver Age Batman and the sexy 70s Neal Adams Batman with the creepy Frank Miller/Golden Age psycho" thing, and it's sort of sliding off the rails. It's funny, because he was the last writer to reinvent Batman - until his JLA depiction, everyone had been imitating the Miller Batman since the 80s. Morrison's genius in JLA was to take all of those heroes as they were being depicted at the time and make them work together, even though DC editorial made all of those characters so totally independent and adversarial (in other words, Marvel-ized them) that something like the JLA was almost unimaginable. The way he handled gruff, Miller-Batman next to all of these brightly-colored, near-omnipotent leotard boys was a stroke of genius.
After that, though, everything became a weak imitation of Morrison's JLA characterizations (or, alternately, Warren Ellis' Authority). Batman beating Galactus or The Spectre or God became routine and boring, and in the hands of most writers turned out to be a deus ex machina most of the time - there was a certain genius to Batman defeating the White Martians (can't believe I just typed that) or Lex Luthor, or Green Arrow and the Atom killing Darkseid, that has since gone unmatched.
That said, I'm glad Morrison is upending the cliche he inadvertently birthed by taking Batman right off the board in Final Crisis #2. This series seems awesome so far. I really do think he's the first writer since Kirby to do anything interesting with the New Gods.