Winstrol burns fat directly. I have explained the mechanism several times on this board. Do a search.
In case you're just too lazy, or you aren't platinum (I'm not), the short expalantion is this:
Winstrol elevates body temperature and exhibits a uniquely effective anticatabolic effect on the body.
The elevated body temp burns the fat, the anticatabolism spares the muscle.
That's why you hear stories of minimal gains with noticable fat loss.
The effect is enhanced if used with a low dose of prop.
Anyone who has used winny at 100mg/day with prop at 50mg/day will tell you for absolute certain that this stack burns fat directly.
Of course, if you eat like shit you will not get as good of results as if you diet correctly. But as to the question of winstrol burning fat, the answer is yes.
By the way, fina also burns fat directly, although the mechanism is slightly different. The increased blood volume in the muscle cell results in an enhanced bioactivity in the organism as a whole, therefore requiring more energy to be burned. Fina is the supreme anticatabolic steroid, so again, we have a preservation of muscle along with accelerated biological activity.
Which of course equals fat loss.
Not all steroids are equal. If they were, there would be no difference in anecdotal accounts of impact, would there?
One other thing about winstrol. It stresses the liver enormously while causing problematic water redistribution internally. It's a harsh drug. Use it sparingly and for short periods of time.