The reality is that you will lose more weight by organising your diet properly than by any amount of exercise (regardless of what the government or anyone else tells you). The exercise should help to improve the way you burn the energy you put into your body, but without a properly managed diet, you won't lose weight.
To do this, the best bet is to stick to eating a maximum number of calories per day (usually for male weight loss something between 1600 and 2000 is recommended), and try and do it in protein (makes you feel full longer), fats and low GI carbs (Oats, Brown Rice, Sweet Potato). If you "eat clean" i.e. cut out processed foods, you'll be surprised at how much food you get to eat and how little hunger you find you have.
Unfortunately people tend to focus on exercise first, where diet is really the most important.