JavaScript - jsfiddle or plnkr

I have jsfiddle and plnkr to do some online codes tests and presentation.

http://jsfiddle.net/user/williamjxj/fiddles/

http://plnkr.co/users/williamjxj

Here is a question: when to use jsfiddle or plnkr? Whats’ the benefits one over the other? The following is my summary, probably not complete, but helpful:

jsfiddle

jsfiddle is a full-screen editor, organized by 4 parts, they are editable in one screen:

• JavaScript
• HTML
• CSS
• display result area

Benefit: jsfiddle can embeded itself