I agree with Glaun to some extend. Cardio burns calories faster than weights. However, keep in mind that weights help you build muscle, and muscles burn calories faster than fat. Weight training is a good investment, makes you look better when you lose weight and generally make you feel amazing.
Why not simply combine the two?
"Losing weight is never about eating as little as possible"
"You wouldn't worry so much about what others think of you if you realized how seldom they do.
― Eleanor Roosevelt
"Do. Or do not. There is no trying."
- Master Yoda.
From October 4th 2010 to April 3rd 2012 I lost half my body weight - 80 kilos/170 lbs. Since then, I have had two cosmetic surgeries to remove excess skin. I have now quadrupled my strength, gained several kilos in muscle mass, and today I focus on building muscle, optimizing my diet, and living healthy. I am stronger, healthier, thinner, happier!