Seriously, anyone who's not taken a look: take a look.
Is Common Lisp still worth considering?
Leaving this aside (after all, it might or might not be a matter of taste), it totally is. The Common Lisp ecosystem is pretty well alive, despite of the rise of Racket and Clojure. You should really give it a try one day. :-)
Clojure is nice. I like the emphasis on functional programming, and a very clean set of basic data structures and operations on them. Plus lots of great libraries.
Nonetheless, being on the JVM seems both a blessing and a curse. And I would love if it was a lot more performant. Clasp is tempting: https://drmeister.wordpress.com/2015/11/23/why-common-lisp-f.... I wish concurrency was better.
I think so. The more I use it, the more I realise how well-put-together it really is. There are numerous places that annoyed me once, before I understood them, and which I now appreciate (pathnames, logical pathnames and Lisp-2 all jump immediately to mind, but there are a few others). The only thing I don't like is the upcasing, but by setting PRINT-CASE appropriately I rarely have to notice that.
The ecosystem is actually quite wonderful these days. Quicklisp is a godsend — xach deserves an award.
All in all, Lisp feels like a well-engineered solution. Not perfect, but really damn good — and better than anything else I've used.