Whatever Happened to the Man of Tomorrow- Alan Moore
Whatever Happened to the Caped Crusader- Neil Gaimen
The Killing Joke- Alan Moore
52 (Not Countdown, just 52)- Multiple writers
Blue Beetle- Not the new 52 version but the one that came after Infinite Crisis- Keith Giffen, John Rogers...
I'd say most of the Jokers would fall for it. He's usually characterized as having an obsession with Batman and, as mention before on this forum, being insulted by what he sees as a fake Batman would piss him off.
I'd also add that Terry isn't dumb, he'd adjust his speech to target whatever...