Do you actually notice any difference in the picture between the two modes? If not, then I suggest just sticking with the Integra for the video switching convenience.
Using the same display and Comcast cable as a source I run HDMI from the cable box to the Elite SC-07 receiver's HDMI Cable input and another HDMI from the receivers HDMI display output to the display. The Comcast remote controls the day to day functions.
The only unusual adjustment was setting up the Comcast remote to run the system. The cable installer did some moves that weren't in the Comcast instructions or at least they weren't very clear to me.
My previous non HDMI Integra receiver was set up with the cable controlling the system. I also used AT&T for one day set up the same way.