Haha. To the OP, just take into account the reason why the consoles got hacked.
Firstly it started with the 360 because MS called it uncrackable. Never call it uncrackable because that's throwing down the gauntlet.
PS3 cracking came later because the system had the other OS feature which when taken away, upset the hackers (not the type in the movies, the type that tinker with everything, like me).
Now Geohot got off extremely lightly for his work on the PS3 which makes me think he probably had a hand in plugging holes that might have been overlooked by Sony in the PS4. Even him chatting with the guys at Sony for a few days would've been a huge boon to the security team.
Lastly the XBO by virtue of having all the online features may well be a target for a lot of crackers/hackers but like SimCity, people will find a way to make the impossible possible.
So for my 2 pennies, XBO to get cracked first with PS4 being more open that'll come later I reckon. Although, piracy will be a secondary goal as always. Homebrew games always come first and I'd be shocked if a Linux distro didn't come next on either box.
Footnote: You also put that Sony has no DRM. Me thinks that people have forgotten what DRM actually means. The discs and system itself WILL have DRM and that is the crux of the matter. What they should've said is the system doesn't have persistent online activation as a requirement by default. To say no DRM is disingenuous.