Video format is always the better choice; if a picture is worth a thousand words then video is worth a million. In this age of fast pace and most people attention spans is under 2 minutes, then you need to have a video that is straight and to the point and give the audience a call to action. If you have a page full of text, people maybe read the first paragraph but most people unless very interested in the subject matter will not read a page full of text. You can make a teaser, commercial or a testimony video and people will get the information in less time than it takes to read a page of text. The pro of copy is people can go directly to another page via the links posted in the blogs. Video is now becoming more interactive so you will be able to go to links via the video itself. A con of video is if the viewer watching has a slow broadband, they may not be able to view the video.