Hey,

i want to figure out who is the best IDE in their area (Web Services, Desktop App, Web Sites, Components Design, UML Support, Tools Supports (extensibility) etc.), on different OSs and some of their features. My favorite is: 

Microsoft (use vendor name!) Visual Studio 2005 (here i love support for Web Services, Visual Designer, not so much coding support (Code Rush, Resharper is still better)), bad at extensibility, for Windows i think is one of the best.

Borland C++ BuilderX, cross platform, support for multiple compilers (great support for switching compilers). Some refractoring. UML support = zero without Together.

IBM? Eclipse, slow, really slow, great support for refractoring and extensibility, cross platform, visual designer = bad or at least < VS, UML support = good.

what IDE are you using? why? what others do you know? please help.
 
EDIT: and what tools do you use? i use Together for UML Support (in VS 2003, sometimes Visio but i hate it, sometimes EA, don't know what to use in VS2005), Refractor Pro, Code Rush, Visual SourceSafe (and Merant PVCS), NUnit, Reflector, WiX, sometimes Borland Optimizeit, InstallShield Developer, Virtual PC, and some other tools.

P.S. Please response to all questions.

EDIT II: I use Visual Studio 2005 Professional