I use my 360 every day, so I always know where to find what I want. But yea, the damn thing is so cluttered with ads. It also reminds me of a bad term paper that uses wide margins and large font to make it look longer than it is. You could remove half the channels and chop down the rest and it'd be much, much better. Even among the ones I actually use, My Xbox and Friends are the only ones I use more than the first 1 or 2 options, and Friends could easily just be part of the Guide Button menu.
Actually, the main menu could even have all the My Xbox stuff, and then have one side menu for online shit with 2 sections, one for music/video/game marketplaces, and a second section for the social shit. Then get rid of the featured shit and ads. And what about the community events? Oh, it's Modern Warfare 2 night! We can play it online tonight! You know, because I couldn't do that any other night of the week.