[quote name='Photomotoz']You really should see no difference, all three(VGA, HDMI, component) support 1080P. The difference should only be noticeable with either A. really long cables or B. really big TVs.
Digital VS Analog is just marketing really, especially in this case. Unless your 360 is 500ft away or your TV is over 100", I doubt you will any difference.
[/quote]
Yes, though for long cable runs you're actually better off with component. Most HDMI cables begin to peter out beyond 50'
But hey, it does reduce cable clutter, and since you're not doing any harm, may as well go HDMI.