Best GWT widget library?

Question

Question for all the GWT gurus out there - which is the best GWT widgets library out there? And why?

List based on the answers:

• Default
• Sencha GXT
• Smart GWT
• Vaadin
• GWT-Bootstrap
• GwtBootstrap3
• Rocket GWT (inactive)
• Tatami (inactive)
• ErraiFramework
• GWTMaterialDesign

И наконец- новое поколение основанное на JsInterop:

• GWT + Polymer Elements
• GWT + Polymer
• Angular and GWT
• GWTMaterialDesign

Answer 1

Do not bind yourself to ANY of these libraries. Use Vanilla GWT to create the structure of your project. In particular, use the MVP pattern and an Event Bus. Please, see google article to know how to best design your client application with GWT: Building MVP apps

After, you can use any widget of these libraries (say a table, or a combobox, a datepicker, etc) and incorporate it to your project. Try to use extended components ONLY if you don't see a way to do it with vanilla GWT. This way you don't tie yourself to these libraries which are ALWAYS a pain when you try to do something that doesn't appear in the demo application, contain many bugs and their support are poor at best.

How to look for widgets should follow this order:

• First check GWT Incubator to see if there's what I'm looking for. http://code.google.com/p/google-web-toolkit-incubator/
• Then, if you are looking for something "cooler" check GWT Mosaic http://code.google.com/p/gwt-mosaic/

Careful with other libraries, I've worked with them (and still have nightmares).