HDMI Vs. RCA (component)

I was running the RCA Style cables to my HDTV (VIZIO) and My ATV was set to 1080i (My TV Max) and It Looks Great (I’m sure this is a Upscale of 720)
But when I run a Good Quality HDMI Cable Directly from the ATV to my TV it only Gets set to 720p I can Select 1080i but it go right to 720p ?!?

Also I purchased a Auto Switch for my HDMI cables ( 1 for my TV 1 for my ATV) and it doesn’t Switch over automatically.

I found out that the ATV stays ON (Black Screen) when you put it in standby mode. AND So does my Cable box for that matter.
I am returning the Auto Switch and I am thinking of getting the Xtremehd 4-PORT HDmi Switcher
Because it has the same footprint (and I will use small rubber pads to raise up my ATV for Air Flow)


Here are some cheaper alternatives: http://www.monoprice.com/products/subdepartment.asp?c_id=101&cp_id=10110&cs_id=1011002