Flash Definitely the best platform for Web animation on the market, definitely the best wisdom of adobe . It is a wealth of content, connectivity, usability, navigation and a whole huge infrastructure support . the only drawback to websites entirely in Flash, is that you need the flash player to see them, and if a business website, this is not profitable, since the user often does not know that need the player, and is best .... opt for a version thml and other flash to my website