Marquette may have an harder SOS overall, but it doesn't really matter if they don't win those games. They are 3-7 against RPI 1-50 while Wisconsin is 4-4. It's very tough for me to guess who will go further, but I think I have to go with Wisconsin. Their defense is outstanding, which is something that can really carry you when you aren't shooting well. Marquette can get blown out when they don't shoot well.