In general, it's the comic book heroes who are held up as romantic prospects. Their noble quests, taut abs, and forthright expressions make them the most eligible non-vampire fictional characters. They also have personal lives designed to garner sympathy; they'll relate on-panel to relatives, friends, partners or just people in the street in ways that show us that beneath their rough exterior, they're good people. If only someone could reach them! Add to this the inevitable holiday issues in which they give presents to orphans or save puppies, and readers will ignore the much more romantically suitable element of the average comic book: Supervillains.