The banners are annoying when people put them on their site just to look 'trendy' and to 'rebel against micrsoft' etc - Mozilla FireFox is great dont get me wrong but all the little pointless banners are stupid imo (not Mozilla's fault)
The point of the banners is to tell people that Firefox is better then other browsers. Firefox is way faster then IE for me, way faster. It also has alot more features which I like.