Hush is also a good Harvey/Two Face story I guess. Loeb kind of ties off his storyline of him that he set up through TLH and DV. (though in Hush, Harvey is pretty much a minor character)
Harvey appears in Hush for like 5 pages. He's not even a minor character. Two-Face is a tick in Hush. This is pretty much a breakdown of his appearances.
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"I flip coin. Good thing I occupy entire page spread. Jim Lee is great artist."
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"Hey, Joker. I'm going to take off my bandages even though you already know who I am."
Joker: "I already know who you are, but why would I be more afraid of you with your face fixed than it looking like Igor's back warts? Yet, I'm frightened!"
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"Hey, Jimbo. It's just you and me...in your room...in the middle of the night. So what'll it be?"
Jimbo: "I have a gun."
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"Wow, this fireworks spectacle looks great from the bridge. But in about 2 more pages I'm going to disappear entirely from this story arc without a reason as to why I got plastic surgery or why it matters whether I legally got my license to sue people again."
Jimbo: "I have a gun."