advice about ASP.NET and PHP for building an auction web site

I need expert advises about building an auction web site in general and I dont need code help.

I stopped one year for developing web sites and I need to know which is more suitable and easy to extend to build this web site

If I used ASP.NET which ORM I should use or I dont have to use it ? and should I use expression web as the IDE ?

I know also there is some good PHP frameworks like CodeIgniter, CakePHP ,etc... but which one is the best for all development cycle开发者_Python百科 ? or should I use Joomla and just build plugins ?

Which JS framework also is more suitable for build fast and cool UI ?

I learn fast so dont worry about the learning problems I just need expert advises about what I should use today to enforce the rules for building clean , standard and cool modern web site.

Thanks alot

As always, it depends. Having worked with both (a lot in PHP, dabbled in ASP.NET) Generally speaking, I'd say that .Net offers cleaner code, while PHP offers faster code (as in developer-time). In my experience, ASP.Net offers cleaner code due to the framework being built-in, whereas PHP offers more freedom right off the bat.

With the new ASP.Net MVC extension, I'd definitely recommend using it for any newly-built large application, whereas about two years ago I'd still have enthousiastically said PHP.

Building a "fast and cool UI" doesn't depend very much on the JS framework you choose - most frameworks offer everything you need to do this. It depends more on what the developer is most comfortable with. Generally, I'd say Sencha (formerly known as Ext JS) or Dojo would be a good bet.