IDE for Clojure - Counterclockwise(Eclipse) vs Emacs. What (if any) features Counterclockwise is missing comparing to Emacs?

I want to know what are limitations of Counterclockwise plugin for Eclipse comparing to Emacs. What Lisp (and Clojure) magic will not be available from Eclipse?

-- UPDATE -- I know Emacs will have more features, shourtcuts, various sophisticated key bindings, but I am interested in specific Lisp/Clojure stuff. For example if I couldn't use regexp search in files, it's fine, but if I couldn't use REPL inside Eclipse, it would be deal breaker for me - it's core feature. So to expand my question, is REPL fully functional in Counterclockwise comparing to Emacs? I don't mind, if some very advanced features are missing, that are just there for convenience, but if I can't do something, I will just jump to Emacs.

Counterclockwise has everything you need for a decent Clojure development experience.

The things I find most useful (can't live without!)

• Fully functional REPL
• Paredit mode / automatic paren balencing
• Matched rainbow parens in both REPL and editor
• Syntax highlighting in both REPL and editor
• Integration with Eclipse / Maven for dependency management
• Many keyboard shortcuts (see: https://code.google.com/p/counterclockwise/wiki/EditorKeyBindingsFeatures)
• Perfect for Polyglot projects that mix Java + Clojure

I'm pretty happy overall using Counterclockwise as my primary development environment. Not saying it's better than Emacs, but it certainly isn't lacking anything that is a deal-breaker.