MBreview.Com has an article on-line detailing their requirements for the "Ultimate Motherboard". Of course, different types of users have different requirements, but there are some universal features we're sure would appeal to anyone.
"For this portion of the article, I'm going to be covering several topics dealing with the hardware aspects of a motherboard, as well as other features such as the accessories that the manufacturers include. When it comes to purchasing a motherboard, many consumers out there look for the most that they can get for their dollar, or whatever unit of currency that they might be using. Who wants to pay a premium price for a lackluster product after all. Accessories,as an example, are often overlooked by manufacturers to cut costs, thereby lowering the value per dollar of the product."