No, Eclipse. Just think about how many "enterprise grade" applications are built on Eclipse.
OT: At one of my former employers we were building a PLC. The sister team was building the IDE to program the PLC, and the compiler.
All of us were behind schedule. But our colleagues from IDE world staged a presentation for the whole project including top management (owner, CEO etc.) where they showed how far they were.
They showed how they have multiple windows inside the main application window, minimizing and maximizing those. Syntax highlighting. Basically everything Eclipse is giving you for free. Actual business logic: none to be seen.