I've been using NetBeans on Linux as my main Rails IDE for the last few years. I kinda like netbeans, but I've been using it since about v4 so I'm somewhat accustomed to it.
Features I make use of: project navigation, file navigation, syntax highlighting, jump to a declaration, re-indent and very occasional code-complete (mostly for css)
Features I don't use: everything else. I always have a terminal window open with about 5/6 tabs from which i do all my generations, migrations, console, server etc. I use RVM and NetBeans doesn't seem to play nicely with that
Features I make use of: project navigation, file navigation, syntax highlighting, jump to a declaration, re-indent and very occasional code-complete (mostly for css)
Features I don't use: everything else. I always have a terminal window open with about 5/6 tabs from which i do all my generations, migrations, console, server etc. I use RVM and NetBeans doesn't seem to play nicely with that