I think Light Table is more innovative, while Nightcode has a more "all-in-one" experience, bundling its own copy of Leiningen along with a few of its plugins f

I think Light Table is more innovative, while Nightcode has a more "all-in-one" experience, bundling its own copy of Leiningen along with a few of its plugins for ClojureScript and Android development. Additionally, if it matters to you, Nightcode is free software (public domain), supports paredit mode, supports Java, and is entirely JVM-based rather than browser-based.