Wired is better. The only thing I have really noticed that favors wireless is sometimes updates work better of wifi. I have no explanation for it, but I have seen on these forums of people having slow or stalled update downloads over ethernet but solved by switching to wireless.Just got a new Apple TV (from Costco if that matters). Is there any reason why I should use wifi connection over the wired connection? My Apple TV sits right next to my router so cabling is none issue for me.