I know it's a long shot, but I remember seeing one particular late silver age story posted a year or two ago on the old scans_daily that I'd love to see again, if anyone has it. It involved Robin nearly being beaten to death to the point where Batman dropped him off at a hospital to save his life. He then spent most of the issue angsting in deliciously cracky prose about Dick's seemingly immanent demise and terrorizing everyone unlucky enough to cross his path. At one point he went back to the hospital to check on Robin and lied to him about having caught the guy, but by the end Dick had miraculously recovered and everything was magically better. It was truly awesome.
And an easier one: I'd really love to see any early Nightwing. And/or any decently non-dickish interaction between Bruce and any of the Batkids.