I am in need of a new pair of headphones for my 3GS. I am considering both of the above. The one thing I am curious about is how either of these sets hold up to sweat. I want something I can use in the gym and while out walking around. I have a pair of the Apple in-ear monitors, but they fare poorly in the gym. I'm actually on my 4th pair of them because they keep shorting out due to the sweat. I would love to hear any present owners thoughts.