[SeanLuke]

To me, Kawa is easily the best Lisp that targets the JVM. And I say that hating Scheme. I'm a Common Lisp guy. Because it is really fast, well designed, and mostly Scheme compliant (no call/cc of course). And it has first in class interoperability with Java and the JVM.

After Kawa, I'd pick ABCL. It's not as fast as Kawa and its interoperability isn't nearly as good, but it is effectively a 100% standards-compliant Common Lisp: what more could you ask for?

Only last would I pick Clojure. It's designed to feel "sort of immutable" but this is impossible if you want any degree of interoperability with the JVM. As a result, you wind up with lots of Refs and other fun stuff which in my experience make Clojure much slower than Kawa and ABCL. It's always slower by quite a lot, but in fact I've had a few extreme situations where Clojure would wind up being __literally__ three orders of magnitude slower.