Web banners are there to be informative or to be annoying it entirely depends on what is being advertised at the time
http://www.lg.com/uk/mobile-phones/index.jsp I think its always a good idea to always have animation in a web site/web banner because it enspires people to come look at your website, i love the contrast, use of colours, and the use of animation in this website, keeps to the traditional website design clicking to the left the concept of this web banner was a still image not a moving one 
http://wow.stratics.com/content/events/WWI08/index.php My favourite web banner so far is the world of warcraft one because of the contrast the traditional left hand clicking to go other places on the website, The way it's been moded into one. It has trailer for upcoming patches for the game showing you information how to play it. 
The layout of Game website is basic but easy to access it's got great contrast and colours same as the other two websites i have been researching traditional clicking on the left main theme of what's best seller and web banner on the top scroller got trailer for the newest games out at the time
