How many people commenting actually OWN and USE both?
Few id imagine.
Bottom line is there is no definitive better or worse.
Depending on what you use your system for, one will have clear advantages.
Games. Pc. Duh. I can get more out of a $1,000 pc than i can out of a 3k Mac.
Variety of s/ware, esp engineering. Pc for life.
For creative work, photography in my case. Id rather use my Mac mini than a PC again.
Likewise at work. When we ran PC's it seemed i spent half my time running around building, fixing, replacing any number of h/ware and s/ware issues.
Sure Mac cost so much more, but its not like im looking behind the couch for spare change to afford things. My time is worth a lot, and id rather spend it making money or having fun than buggering around with broken things that shouldnt be.
I love mac's and i love my pc. It would suck having to go without either.