Choosing the right type of menu for a website is not easy at all. The ASP.NET Menu Control is definitely NOT a good starting point due to the horrendous markup it renders, nor is it good for SEO because of the Markup/Content ratio, neither can it be easily styled.
Of course there is the CSSFriendly Control Adapters project that started back in 2006, which made the the ASP.NET Menu (and many other ghastly markup rendering controls) render beautiful <div> based markup. In the case of the Menu it rendered <div> and <ul>-<li> type markup which is probably the most widely spread technique used for creating menus known to mankind. » Continue reading ...