Of course, Sweet.js provides means for breaking hygiene. Also, Clojure macros are kind-of, a-little-bit hygienic, with their rules for identifiers resolution.

Of course, Sweet.js provides means for breaking hygiene. Also, Clojure macros are kind-of, a-little-bit hygienic, with their rules for identifiers resolution. Anyway, I'd say they're rather similar in expressivity and capabilities, but I don't know both macro systems well enough to do detailed comparison.