well, nobody here really has their own agenda, other than giving advice that they feel is correct, or safe.
testosterone is suggested, because it works. it is also extremely predicable in the results it gives, due to the fact that it's a normal hormone in the body. pretty much every other steroid/androgen (including anavar) is a modified version. while many of them work well, there are occasional issues that develop... for instance, while anavar and other DHT-derivatives have cool features, they do not aromatise. this means that while you take them, you will have low levels of estrogen in the body, which can lead to some side effects... obviously, a short cycle will mitigate that, but again, low estrogen hurts for some folks (imagine your joints feeling like sand paper, and that's what i mean...).
pretty much all androgens will help you lose bodyfat, testosterone, included. the difference here, is that you'll gain more muscle with testosterone than you will with anavar.... and neither one is gonna burn 20 lbs of fat off you.
another issue with oral androgens, is that they all require the liver to process them. again, 6 weeks of anavar isn't likely to cause you significant problems, but testosterone will cause no liver issues, as it doesn't need to get processed there.
as far as PCT, i never suggest multiple SERMs, as i feel that leads to increased side effects. there's plenty of research that shows 20 mg/day of Nolva or 25 mg/clomid is very effective.... there's no need to bump up the dose.
if you're looking to solely burn some bodyfat, then i'd suggest looking at things that actually accelerate lipolysis/metabolic rate, like beta-agonists and thyroid hormones.
another suggestion is to get bloodwork (testosterone, estradiol, thyroid, etc). you're getting to the age where that stuff starts to go down, and you might actually need to medicate for a deficiency. and it's always a good idea to get bloodwork before any cycle, to establish a baseline of your hormones...
below are a couple links to take a look at: