Be honest. Talk about all the positives of the Xbox One instead of repeatedly acting like there isn't a huge difference when everyone knows it's totally false. They intentionally shipped an underpowered console so they could include other things like kinect and the tv features.
Also...you know...maybe talk about what matters most? Gameplay.
That conversation is what got many hardcore gamers to buy-in to the Wii in its early days. Despite an underpowered console, which Nintendo freely admitted, they focused on what Wii could deliver in new forms of gameplay.
They should be focusing on what sets the Xbox One apart...not repeatedly ramming their head into a wall over something that's a 100% technical fact that isn't going to change.
I wouldn't expect them to do this though, given that they totally backed out on their vision in the first place. It's clear they don't have a defined vision yet because of all the 180s.
That's the whole problem that keeps MS talking about specs instead of talking about what makes their platform different.
This isn't a situation like the Wii where they are selling a revolutionary way to play games and the software to back it up on day one. Kinect has offered nothing to improve games so far on XB1 beyond what has been done in past generations. Voice commands have been around in games since PS2 and Kinect Sports has been done. If the Xobx One can do some legitimately innovative things for gameplay due to the system, they've yet to show them. Also, they can't lean on a vastly superior online setup (friends/party system/matchmaking) like they were easily able to with the 360, which was the real revolution that the 360 brought to gameplay.
It's also real tough for them to hold up their multimedia features and Kinect dashboard commands because they can't go too far without blatantly lying about them. They have a tiny advantage in multimedia apps, but they don't have Twitch streaming. Kinect voice recognition is inconsistent (works well for some, poorly for others) and is really clunky compared to something like Siri. They do have cable, if that's your thing. The Snap feature isn't too useful to talk up because in the age of tablets and smartphones, having a laggy Internet Explorer or Netfilx show take up 1/20th of your screen isn't all that impressive. Also, many of these features can't be talked about too much because they flat-out aren't available or are busted in many of the countries the Xbox One is being sold in. So while they could hold up the Xbox One as a superior media box, they can't get into detail too much without alienating plenty of the countries that they sell in today.
The big thing to talk about is games, because that's what everyone who is buying a console this early wants. The fact is, resolution and frame rate have a pretty big effect on gameplay. Even if MS hadn't been making so much hay over the Xbox One being close, equal, or more powerful than PS4, it would still be news that so many multi platform games are running this much worse on Xbox because a lower frame rate and a lower resolution directly impact gameplay in several obvious ways and many not-so-obvious ways. The continued insistence from MS only makes this a bigger story everytime a new game releases.
