The defaults it starts with aren't bad as defaults go. Any changes to that are either (1) personal preference or (2) relate to your TV size and distance from where you sit (which affects readability at various sizes, etc). Other people can tell you what they've done, but only you can decide what works well for you. Play around with the UI setup enough to figure out what's adjustable. Then move anything that's in your way. With a little trial and error, you'll figure out your own best arrangement.