HCLF - Eatwell plate type of regime, 500 calories less than BMR didn't work, 1,000 calories less than BMR didn't work, 1,000 calories than BMR and heavy exercise didn't work.
Tried this for 7 years, the only benefit was that I didn't get any fatter, I learned a lot about self discipline, I gave my GP a lot of grief because he didn't have a clue and when I did stop taking Rosiglitazone, the cause of most of my weight gain, the weight did fall off. Right up until they put me on Gliclazide.
I never felt well or happy during this period.
LC (nothing special on the fat front) - no potato/pasta/rice/bread resulting in about 80gms carb and 1,000 calories less than BMR, so about 1,000 calories, lost 3 stone in about 6 months, slowly but steadily.
Then I hit a plateau for about a year, then in November 2014, after an operation, anti-inflammatory pain killers and blood thinners, lost another 1 1/2 stone, and have now hit that plateau again.
No change in diet since dropping the carbs, exercise has been up and down, presently concentrating on getting left leg back to normal.
Feeling a lot better and happier, obviously partially down to being lighter, but also because I'm more in control and not having to tolerate the side effects of the three drugs I stopped taking, whatever they were.
I'm only being truthful, even if I have an account. I hate early mornings as well but couldn't find a badge.