Popsy struggles with his maths ;-) so here it is just one more time...
1) You DO burn up more cals and even fat in a higher intensity session - agreed.
2) If you burn 1000cals and it is 70% carb cals then you have lost 700cals of carbs that MUST be replenished to train again and 300 fat cals that do not.
If however you burn 70% fat then only 300 cals of carbs need to be replenished.
The difference here SHOULD be clear - carb cals MUST be replaced and so cannot be viewed as weight loss as such.
This in turn gives the OPTION to eat less carbs and maximise weight loss. Crabs should be viewed as fuel - see previous post.
3) Just as metabolism continues to be higher after exercise, so the type of metabolism continues after exercise - you will be a better fat-burner at work, play and sleep.
4) An efficient fat metaboliser has a very low carb requirement - hence the negative effects often associated with low carb diets have far less weight (no pun intended) as the body does not REQUIRE many carbs.
5) Low intensity, fat burning, base building running can be, and should be, repeated day after day - high intensity exercise cannot, and must not
Summary - although high intensity exercise will burn more fat in a sinbgle session, a fat burner can train more often, with less injury and illness risk, will burn more fat during the rest of the day will get fitter more easily enabling longer sessions burning even more fat. A fat burner trying to lose weight should recognise that their carb requirement is far less than the high intensity exerciser and so can eat far less without it affecting their ability to train. The high intensity guy does not have that option as he needs to replenish his carb stores for the next high intensity session which should only be every other day at best and even then may be too much. And when most trying to lose weight are newbies to running, well... this IS the base thread...
This is why I managed to lose 4+lb of FAT every week for 10+weeks - impossible with higher intensity exercise.
This is a classic example of the science being right and the application being VERY wrong.
If you want to lose weight, base training is WHEN to do it and base training is HOW to do it. View carbs as fuel - ALWAYS have enough - NEVER have much more.