Well, since Batman inspired the LAST round of multi-threads (i.e., Batman vs…), it’s only fitting he should get a “best ____ lines” page too.
Some of the best came from Frank Miller’s The Dark Knight Returns, love or hate that story:
On beating the crap out of Superman: “…I want you remember, Clark…in all the years to come…in your most private moments…I want you to remember my hand at your throat…I want you to remember the one man who beat you…”
On beating the crap out of a mutant gang leader: “You don’t get it boy…this isn’t a mudhole, it’s an operating table. And I’m the surgeon.” (Loud crack.) <Internal monologue>"Something tells me to stop with the leg. I don’t listen to it.</Internal monologue>
A fun one from JLA
Wonder Woman: What a strange question. Why should anyone know how long they can hold their breath?
Batman (appearing out of nowhere): Three minutes fifteen seconds. You’d be surprised why.
C’mon, people, let’s see some more.