I love the "go-go checks" era at DC. It was filled with a lot of silly stuff that was unmistakably groovy. Arguably the leading artist for DC in this period was the great Carmine Infantino. Carmine took over Detective Comics in 1964 with editor Julius Schwartz in order to make the Caped Crusader a little more serious. For the most part it worked. The art was always great and the stories were pretty good too. Around the time Detective #353 came out in 1966, the Batman TV show was starting to hit big and the comics were trying to capitalize on its success. While the comics weren't nearly as campy as the show, they were still a lot of fun. I've always enjoyed Carmine's unique style and his ability to draw fight scenes was very good, as this page indicates.
Infantino's splash pages were always unique whether it was for Batman or his backup feature at the time, The Elongated Man. He had a fantastic sense of composition and style that was strictly Carmine. You could never mistake him for anyone else.
While the 70's brought a much darker and realistic Batman, I'll always enjoy these mid 60's stories which helped mark the transformation of the Darknight Detective to what we all know today.