Honestly man, let your eyes be the judge. That's the only real advice anyone can give you. So many things effect one or the other. Some things look better 720p while others look better 1080i. Depends on the movie also. Chick flick probably 1080i since there will be little action. Dude flick 720p since there will be more happening on the screen. I find that Dude flicks but with a lot of outdoor day action also does well in 1080i. But this is MY set and MY eyes. Your stuff may be totally different so just look for yourself and decide.