Dastardly said:
I'd offer that people aren't nearly as sick of zombies as they are of the same few generic characters used in zombie settings.
... This. (Please don't report me)
I like my zombie games, I really do, but the characters have a tendency to be... well, shit. Dead Rising (the first one, I haven't played the second) offered somewhat of a change to it by having its special backstories involving psychopaths, escaped convicts, and a photographer with the most annoying in-game voice in the world (I'm talking about "Kent", which is weird because he sounds normal in the cutscenes). Still, though, Dead Rising's main characters are just stereotypical cut-and-paste characters. "Strange Hispanic Man". "Strange Hispanic Woman". "Photojournalist". "Agent".
... But really, that can be forgiven when you compare Dead Rising to, say, Dead Island (what's with all the "Dead"?), you'll find which is truly better. ... And no, graphics don't make anything better. ... Okay, they do, but nowadays they really don't, considering we're still comparing everything to Half-Life.