I didn't take the time to read through these replies, so Forgive me if I repeat anyone's opinion. ANyway, here is the deal...Cardio burns more calories technically if you break a sweat. However, lets look at some examples of calorie burning by example and see. Okay, for the sake of comparison, here are the calories burned in a half hour by different forms of exercise.
jumping rope for half an hour burns as much as 400 calories
Cross country skiing which uses more muscles, only burns 275 calories per half hour, so there you have it...you can safely assume that cardio exercise burns more calories than weight training. However, over the long haul, as your muscles grow and strengthen, they burn more calories at rest. It's really a matter of doing what you know you will do consistantly. Now weight lifting will tighten your muscles and give you fast results as far as losing inches goes. Here is a bit of factual information that I recieved from my physician who rescently lost several pounds herself. She said that if you can do a steady amount of activity for an hour straight at least once a week, be it house cleaning or running, it will significantly raise your metabolism because after an hour, your body goes into overdrive and burns a lot more calories at rest than doing a half hour of activity on a daily basis. SOOOOO, the conclusion I have found for you is that you should NOT cut back on cardio if it's calories you are trying to burn. The faster the heart rate, the more the calories burned, keep it steady. If you increase your weight training, and decrease your cardio, you may burn more calories at rest, but you will also build more muscle faster than you burn fat which will make you bigger at first and then have to keep at it for a longer period of time than you would if you were doing a more intense cardio, or a longer cardio workout. My suggestion, just add ten minutes to your cardio or do your cardio with light weights in your hands, like maybe a pound or two in each. Yes, I'm an exercise buff, I know what works, and what works fastest. Hope it helps. OH and keep in mind, everybody is different, so do what you feel works for you, experimenting with different forms of exercise and different amounts of time put into it is really good for you.