I'm no expert, but common sense (and simple math) shows that cutting calories is much more important than exercise if weight loss is the goal.
FitDay says that I burn just over 100 cals by walking a mile at 3 mph at my current 310 pounds (which I do daily).
A 2 oz. Snickers bar is around 270 calories.
It would take me almost an hour to burn off one candy bar. It takes "no time" to not eat it in the first place. Simple math!
Now, though, if we combine a modest reduction in calories with a modest increas in calorie burn we get the best results--a weight loss AND better fitness (and hopefully an eventual boost in metabolism if we gain muscle).
47 M 5'8"
May 4, 2010...... 440? lbs. (Start FitDay Size 60 Jeans)
June 19, 2010.... 393 lbs. (First Weigh-in)
June 19, 2011.... 229 lbs. (164 lbs. gone in one year :-)
Current Weight... 185 lbs. (Size 36 Jeans)
Next Goal 169 lbs. (07/04/12)
Ultimate Goal 165 lbs. (12/31/12)
The best exercises for weight loss are Fork Putdowns and Table Pushaways.