Kris
The last butter-wouldn't-melt "house hunk" that got his comeupance was Sezer.
Since then Mikey, Ziggy, Rex and Dale did some pretty awful things and got away with it on the grounds of being young, attractive, white and male.
Needless to say Kris will get the shock of his life if he gets evicted.
Edit: Actually come to think of it, a Charlie eviction would be even more shocking. I can see see a humiliating exit ala Kathreya on the horizon.