MAC or PC?

Hey guys, I'm looking to buy a new computer and I'm not sure if i should get a mac or PC. I want a computer that will last me a long time and run really fast. Right now I'm using a PC but i don't like how sometimes its slow I like the way mac's look but they are really expensive. I also want to build my own custom computer but I don't know if its worth it.

Comment what computer you would recommend for me to buy i have $1000 to spend.