which is a better trainer.

hey i'm debating which of the two sneakers are better for training. weight training and cardio (stationary bike, elliptical, and treadmill).
Nike Air Trainer 1 Low SL Men's Training Shoe  VS.  Nike Trainer 1.2 Low Limited Edition Manny Pacquiao Men's Training Shoe

i'm looking to lose 25 pounds by august for the warrior dash, which is a 5k w/ obstacle course.

any input on either model would be great.  thanks in advance