I haven't played Madworld (not my type of game), but I can tell you that Dead Rising was only decent. It's not a game I regret buying or playing, but there are plenty of better Wii games out there.
Plus, in terms of length it isn't that much ahead of Madworld: I took my time and still beat it in just over ten hours. Mind you, I haven't done all the challenges (those ARE kind of fun), but it won't give Dead Rising that much of a lead.







