If we're talking Linux, then yes, IntelliJ is a gruesome sight indeed.
Not in the guise of Android Studio, using the Darcula skin. It is actually rather pleasant to look at, as far as IDE's go. Just make those humongous fonts a bit smaller and it looks quite sleek. I wonder why so many Java apps insist on using oversized fonts and features, especially since Swing was introduced?
Font rendering is still horrible on Linux compared to Sublime.