Definitely roddick....soderling has attitude problems and no one likes him on tour (although he's improved somewhat, lately). I like roddick's never-give-up attitude, which allowed him to push fed to a long 5 setter in wimbledon 09, plus win many other matches (e.g. against nalbandian in us open 2003, which roddick eventually won). Roddick's passion and commitment toward tennis is remarkable, and i feel sorry for him not winning any more majors, for all the hard work he puts in.