I'm not trying to convince you of anything. The burden of proof lies with you.
Read the facts. Windows has what, like 86% of the desktop market?
I think you might be confusing facts with statistics? In any market you choose to look at, you can find a high-quality alternative to the commodity product offering that has a minority of the market share. BMW is the oft-quoted example in the automobile industry. It would be a mistake to claim "A BMW clearly doesn't outperform a Ford Taurus because there are so many more Fords on the road." Their relative market share clearly has no bearing on their respective performance.
I think it's far from obvious when you've been unable to point to one concrete (even biased and opinionated!) example of why you think a Macintosh computer is inferior to the technology you choose to use.