As a former Schemer: I wish Scheme were as portable as CL, and had something as awesome as QuickLisp. There’s something fantastic about being able to use the CommonLisp implementation that’s most appropriate for your platform/target and still be able to take your code with you.
My favorite scheme/lisp implementations are sbcl/racket/chicken.
Not because of speed or portability but mainly because of available libraries.
As a former Schemer: I wish Scheme were as portable as CL, and had something as awesome as QuickLisp. There’s something fantastic about being able to use the CommonLisp implementation that’s most appropriate for your platform/target and still be able to take your code with you.