What's your favorite RoR editor/IDE?

i think textmate, vim, emacs, netbeans, Aptana, and maybe komodo all
have happy users. Let me answer a different question. I believe
textmate is the best documented editor/IDe, with the Gray book and
literally hundreds of blogs about how to do anything (and the
occasional bug/gotcha). Look in delicios for tag "rails+textmate".