At work we use Clojure, and I find it much better than Ruby, but not because it has more features. Actually because it has fewer features, namely fewer "magic" features which were meant as a convenience, but really end up just making almost all Ruby code very convoluted, e.g. having tons of unnecessary implicit indirection. That plus immutability makes Clojure code much easier to keep clean over a long period of time. And being able to edit s-expressions is actually easier and quicker for me than editing line-based code now that my muscles have memorized paredit.