A friend asked the other day which I prefer painting on, canvas or panel. I have been painting on larger canvases as of late but I do hate the sound of the canvas if I am constantly dabbing on an area. Painting outdoors it is better to work on a panel as the light will not go through the back of the canvas if I am painting into the sun. The stiffness of panel also I like painting against. Sometimes the give of a canvas id too much. That said canvas has its own properties that I like as well. Much lighter when painting large is nice. Haling around big panels can be tough. Another option that I have tried and like is to glue the canvas or linen to a board. This world well and you can get the texture of the linen as well as taking care of the problems with canvas that I have mentioned. If a sharp object pokes the canvas you have something behind to protect it as well.