Which would you rather have: 2010 Lexus GS or 2010 Infiniti M35?

What im asking is which is the better car. I know it all boils down to personal preference but i want more peoples opinions. Which car is more reliable? Which one has the better exterior design, which has the better interior design? Which car generally lasts longer? Which one drives smoother? I know maintenance is expensive, but which is cheaper? Which car better compares to lets say an E-Cl benz or 7 series bmw