My absolute favorite color is blue. It is one of the primary colors in painting and traditional color theory.
I like blue also, i wore it often as a child, but at the present time my favorite color is green.
Green is the color between yellow and blue on the visible spectrum. I like it too.
Now that you mention yellow, that was Vincent Van Gogh's favorite color.  He used it extensively in his paintings.
Yes! He emphasized certain hues like yellow and highlighted a lot and made vigorous brush strokes.