Chris Sims of Comics Alliance offers up his choices for the 18 best panels in Batman's 700+ issue history. He stipulates that they have to be actual panels (not poster art), Batman must be in the panel, and no full-page panels. The one above is from "Fear for Sale" by Mike W. Barr and Alan Davis (Detective Comics #570).
Link for more of the best panels in Batman's history.
If there's one thing I've learned from two and a half decades reading Batman comics, it's that that dude straight up loves to punch people. As you might expect, this means there are some truly fantastic chin-checks delivered over the past 70 years, but nobody -- not even Neal Adams -- makes Batman deliver an uppercut quite as solid as Alan Davis in his all-too-brief late '80s run.
That thing is just textbook perfect form: Great extension, moving forward to maximize power, and if the Scarecrow's mask hadn't been attached, I'm pretty sure Batman would've punched his head clean off.
Link for more of the best panels in Batman's history.
http://www.comicsalliance.com/2010/06/28/best-superman-panels/