Native resolution of 720P is much better than 1080i. There’s a whole heck of a lot more data for a display device or video processor to work with. Depending on the VP in the display however, you may, or may not notice a difference. Also, depending on how close you sit to the image and the size of the display will also play into visual appeal of the image.
This has been answered many, many, many times with very long and informative posts. Alan also has some very good information on the topic. I’d write more but I’m too bored with this subject to do that again……
I’m going to use Randy’s line “use the search feature”.
