Oh, I agree. If you sat me down and asked me to watch an average episode of Spider-Man, X-Men, or Batman TAS, I'd be prone to choose the Batman episode. IMO, the general writing quality of the series was better than that of its Marvel counterparts. So much so that, more than Michael Keaton or Christian Bale, I consider Kevin Conroy the real Batman. Accept no substitutes.
Unless you want camp, then Adam West is king.