I have used both separately and I have actually stacked injectable winny with anavar (orals are the only Var Ive ever seen).
Winny - definitely INCREASED muscle average 5-7 pounds. This was used by itself 50mg daily for 8 weeks. Muscle is hard and dry. Hard on the joints. I could definitely see injuring yourself using winny only. Strrength gains not that impressive.
Anavar - wont add a pound of muscle but will harden you up much more than winny, EXCELLENT when on a calorie deficit cutting diet, PERFECT for dropping fat off the abdominals. Gives your muscle a much crisper, more visually impressive look. Again, you wont add any muscle. Just makes your current muscle look MUCH, MUCH harder and more Vascular. Strength gains and pumps are way better than with Winny.
Stacking them together I found to be an excellent combo. People on here will tell you that's crazy, your cholestrol, lipids blah blah blah
Hey Im just saying that I have had blood work since and Im 100%. Any damage done is only temporary.
I would stack 100MG Test Prop EOD with winny and var for the best results. If I had to choose and money was no object, I'd have a gigantic box full of Var at home. Winny is cool too. Everyone responds differently and also largely depends on your source. I think most people who have a bad experience with Var either had really shitty UGL product or didnt take a high enough dose. 50mg of Var daily works great on me.