Personaly i found abcl a bad experience.
Thoughts on ecl & clisp ?
sbcl works nice & fine. But i’t’s the only lisp implementation i know.
There are good books on racket-scheme & chez-cheme.
The only book i know for lisp is, “Common lisp , a gentle introduction to symbolic computing”.
I don’t know how much they consider it complete and how much they just don’t work on it, but there are some updates from time to time; I see the creator Bruno is pushing fixes from time to time.
:-) I would be interested to hear the experience. I am aware of it, but I haven’t had time to try it myself. They also seem to be on very sporadic development.
I personally haven’t tried Clasp, CMUCL, CLisp and GCL yet; I just don’t have time. It takes time to try everything properly, build it etc, so I am currently just using sbcl; but I would be interested to know how other implementations compare in terms of completeness, extras they offer, performance, correctness etc. I would even watch a YT video if some YouTuber was interested in making a review wink wink you know who you are :).