Poll: Heroes vs. Dexter

Ok, so I need to know whether it's more fucked up that Michael C. Hall (of Dexter fame) dates Jennifer Carpenter who plays his sister in the show, or that Hayden Panettiere and Milo Ventimiglia, who play an niece/uncle duo on Heroes, date in real life?

(It may be significant to note that Milo is 31 while Hayden just turned 19...)