I use my windows for everything except osu! and LoL. My desktop at my dad's house there is shit for both, but my laptop here at mom's house is fine for both. I try and use the mac when I'm at dad's because it runs alot better than a windows (suprisingly)
Some crappy windows vista PC that I changed to a windows 8 one. And bought a cheap video card for. But later I'll buy an ASUS ROG TYTAN series g30