Aside from Cullen sparkling and being white, is there any difference between these two at the core? I've never read or watched twilight, but I get from people talking about it that Cullen kills vampires hostile to humans like blade, is a daywalker like blade and avoids drinking blood like blade.
Actually, Blade tracks down and kills other vampires for a living. While it's true that Edward can't die from sunlight like traditional vampires, I've heard he feeds on animal blood instead of the human variety.